<p><strong>In closed communities such as the Amish in North America, rare genetic disorders occur more frequently. In children from this community, a condition has been described that affects the development of the nervous system and manifests, for example, as muscle weakness or epileptic seizures. The disorder is linked to a small change in a single protein, but for a long time it was unclear which cellular process this change disrupts. This question has now been answered by researchers from CEITEC Masaryk University, who show that the disease is caused by a disruption of a key mechanism required for the proper processing of genetic information in the cell.</strong></p><p>Every cell must first transcribe genetic information and then modify it before it can be used. From the original “working transcript,” unnecessary parts are removed and the remaining pieces are precisely joined together. This process, known as RNA splicing, consists of many consecutive steps and is tightly regulated. If the process does not proceed correctly or stops at any point, the cell cannot properly convert the copied genetic information into a usable form and therefore cannot function as it should.</p><p>Researchers from CEITEC Masaryk University have now described one of the key steps in this process – <strong>a specific signal inside the cell</strong>. This signal acts as a checkpoint: only once it is fulfilled, the entire mechanism is activated and the process can continue.</p><p><i>“We showed that during RNA splicing, a chemical modification of the protein SF3B1 is required at a precisely timed step. This modification allows another protein, SNIP1, to bind. If this signal is not transmitted correctly, the cell cannot proceed with the splicing process,”</i> explains first author<strong> </strong><a target="_blank" rel="noopener noreferrer" href="https://www.ceitec.eu/pavla-gajduskova-ph-d/u26136?page=publication"><strong>Pavla Gajdušková</strong></a>.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_4_79e003984a.jpeg" alt="CEITEC: A Rare Genetic Disorder in the Amish Community Helped Confirm a Key Cellular Mechanism: Pavla Gajdušková" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_4_79e003984a.jpeg 235w," sizes="100vw" width="1600" height="1067"></p><p>This is where the research connects to patients in the Amish community. In affected children, a <strong>small genetic change in the SNIP1 protein </strong>disrupts its ability to respond properly to the signal mediated by the modified SF3B1 protein, <strong>making RNA splicing less efficient than in healthy individuals</strong>. As a result, errors occur during RNA splicing that the cell cannot correct, impairing its function – especially in the nervous system.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_44a7e2ef17.jpg" alt="CEITEC/Blažek Lab: A Rare Genetic Disorder in the Amish Community Helped Confirm a Key Cellular Mechanism: Interaction between SF3B1 and SNIP1 proteins." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_44a7e2ef17.jpg 156w," sizes="100vw" width="1600" height="1600"><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_2_85826d711e.jpg" alt="CEITEC/Blažek Lab: A Rare Genetic Disorder in the Amish Community Helped Confirm a Key Cellular Mechanism: The effect of mutations in SNIP1 on cell proliferation." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_2_85826d711e.jpg 235w," sizes="100vw" width="1600" height="1067"></p><p>The researchers were thus able to clarify the cause of this rare neurodevelopmental disorder. <i>“Additionally, the cause of this disease also confirms the correctness of the checkpoint we described. It shows that even a small change in one of the proteins involved can disrupt the RNA splicing mechanism on which the cell depends,”</i> adds group leader <a target="_blank" rel="noopener noreferrer" href="https://www.ceitec.eu/dalibor-blazek-ph-d/u25918"><strong>Dalibor Blažek</strong></a>.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_3_f95cfd68eb.jpeg" alt="CEITEC/Martin Indruch: A Rare Genetic Disorder in the Amish Community Helped Confirm a Key Cellular Mechanism: Dalibor Blažek." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CEITEC_Vzacna_geneticka_porucha_z_amisske_komunity_pomohla_potvrdit_klicovy_mechanismus_v_bunce_3_f95cfd68eb.jpeg 235w," sizes="100vw" width="1600" height="1067"></p><p>Although the study focuses on basic research, its implications are broader. It suggests that the same mechanism may also play a role in regulating cell division – a process that is often disrupted in cancer.</p><blockquote><p>The research was carried out by scientists from <strong>CEITEC Masaryk University </strong>in collaboration with researchers from Spain and Germany. The study was published in the journal <a target="_blank" rel="noopener noreferrer" href="https://www.nature.com/articles/s41467-026-71119-2">Nature Communications</a>.</p></blockquote>

A Rare Genetic Disorder in the Amish Community Helped Confirm a Key Cellular Mechanism

<p><strong>This study investigates the pathogenesis of neurosyphilis through cerebrospinal fluid proteomics using LC–MS/MS and ELISA validation. Comparative analysis identified 234 differentially expressed proteins, with major alterations linked to lysosomal dysfunction, axon guidance, and neurodegeneration pathways.</strong></p><p>Key lysosomal proteins, including PSAP and DNASE2, together with the axonal protein EPHA4, were significantly downregulated in neurosyphilis patients. These proteins showed potential as biomarkers for neurodegeneration and may provide new insights into disease mechanisms, diagnostics, and therapeutic targets.</p><blockquote><h4><strong>The original article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689"><strong>Cerebrospinal Fluid Proteome Reveals Dysregulation of Lysosomal and Axonal Proteins in Neurosyphilis</strong></a></h4><p>Huayang Tang*, Junjie Hu, Yifan Wu, Jinping Gao, Wenjun Wang, Xiaodong Zheng, Ran Zhang, Bo Liang, Fusheng Zhou, Ze Guo*</p><p>J. Proteome Res. 2026, 25, 2, 713–722</p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1021/acs.jproteome.5c00689">https://doi.org/10.1021/acs.jproteome.5c00689</a></p><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/"><strong>CC-BY 4.0</strong></a></h6></blockquote><p><strong>Selected sections from the article follow. Formats and hyperlinks were adapted from the original.</strong></p><div><p>Neurosyphilis (NS) is a group of clinical syndromes characterized by neuroinflammation caused by <i>Treponema pallidum</i> (<i>T. pallidum</i>), which occurs in all stages of syphilis. <a href="javascript:void(0);">(1,2)</a> NS is classified based on clinical presentation as either asymptomatic (ANS) or symptomatic (SNS), and based on disease stage as either early (occurring 1–2 years after primary infection) or late. <a href="javascript:void(0);">(1)</a> <i>T. pallidum</i> can cause local nonspecific and central nervous system (CNS) inflammation, leading to possible degenerative changes. <a href="javascript:void(0);">(3)</a> The immune response of CNS in neurosyphilis is comparable to that observed in other neuroinflammatory diseases. Consequently, the presence of neurological symptoms may not reliably indicate active CNS inflammation in syphilis patients. <a href="javascript:void(0);">(3)</a> A cerebrospinal fluid (CSF) proteomic study identified three biomarkers (SEMA7A, SERPINA3, and ITIH4) that contribute to NS and have potential implications for diagnosis and therapeutic strategies. <a href="javascript:void(0);">(4)</a> Through integrated proteomics and single-cell transcriptomics analyses, Toll-like/NF-κB signaling was identified as the key pathway involved in CNS damage caused by <i>T. pallidum</i>. <a href="javascript:void(0);">(5)</a> Despite an increasing understanding of the biomarkers and possible neuroinflammatory damage mechanisms of neurosyphilis, the mechanisms of neurodegeneration caused by <i>T. pallidum</i> infection remain elusive. <a href="javascript:void(0);">(6)</a></p><p>Patients with neurosyphilis exhibit stage-specific profiles of soluble factors in their CSF, which are linked to both immune status and the extent of neuronal damage. <a href="javascript:void(0);">(7)</a> In this study, we analyzed differentially expressed proteins (DEPs) in the CSF proteomes from 28 individuals, including neurosyphilis (NS), suspected neurosyphilis (spNS) and non-neurosyphilis (nNS) individuals, by LC–MS/MS and analyzed a public data set of the neurosyphilis CSF proteome. Validation was then performed by ELISA in an independent group comprising 110 samples. The results revealed that neuroinflammation by <i>T. pallidum</i> infection results in dysregulation of the key proteins in lysosomal and axonal pathway, which suggesting a potential contribution to neurodegeneration in neurosyphilis.</p><h4><strong>Materials and Methods</strong></h4><h5><strong>LC–MS/MS</strong></h5><p>The tryptic peptides were dissolved in 0.1% formic acid (solvent A) and loaded onto a custom-made reversed-phase column (15 cm × 75 μm). Using an <strong>EASY-nLC 1000 UPLC system</strong>, a gradient was run at 400 nL/min as follows: 6% to 23% solvent B (0.1% formic acid in 98% acetonitrile) over 26 min, 23% to 35% in 8 min, up to 80% in 3 min, and held at 80% for 3 min. Peptides were ionized via an NSI source at 2.0 kV and analyzed online by a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/559"><strong>Q Exactive Plus mass spectrometer</strong></a><strong>.</strong> Full scans (<i>m</i>/<i>z</i> 350–1800) were acquired in the Orbitrap at 70,000 resolution. The top precursors were selected for MS/MS with an NCE of 28, and fragments were detected at 17,500 resolution. A data-dependent method cycled between one MS scan and 20 MS/MS scans with a 15.0 s dynamic exclusion. AGC was set at 5E4. MS/MS data were processed with MaxQuant (v.1.5.2.8) using Trypsin/P as the enzyme (up to 2 missed cleavages). Precursor mass tolerance was 20 ppm (first search) and 5 ppm (main search); fragment mass tolerance was 0.02 Da. Fixed modification: carbamidomethyl (C); variable modification: oxidation (M). The FDR threshold was &lt;1%, and the minimum peptide score was &gt;40.</p><h5><strong>ELISA</strong></h5><p>CSF levels of host proteins were quantified using commercial ELISA kits according to the manufacturers’ protocols. Proteins analyzed included PSAP (OKEH07124, Aviva, USA), CTSL (abx150963, Abbexa, UK), NPC2 (A-QEK07857, Biogradetech, USA), and DNASE2 (abx386953, Abbexa, UK). Briefly, 100 μL of CSF was added to precoated plates and incubated at 37 °C for 2 h. After washing, 100 μL of detection antibody was added to each well and incubated at 37 °C for another 2 h. Following a wash, 100 μL of streptavidin-HRP working solution was added and incubated at room temperature for 20 min in the dark. The reaction was stopped with 50 μL of stop solution, and the optical density was measured at 450 nm.</p><h4><strong>Results</strong></h4><h5><strong>Downregulation of Key Lysosomal Proteins in CSF from Patients With Neurosyphilis</strong></h5><p>By analyzing the DEPs in NS vs nNS, we observed a significant enrichment of downregulated proteins in the lysosome pathway (<i>P</i> = 0.007) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>A), with 9 lysosomal proteins showing significant downregulation (<i>P</i><sub>adj</sub> &lt; 0.05) in the NS group (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Table S4</a>). To validate this finding, we examined the public CSF proteomics data set of neurosyphilis (PXD033034) and identified 18 proteins in the lysosomal pathway that were significantly downregulated in patients with NS (<i>P</i><sub>adj</sub> &lt; 0.05) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Table S4</a>). PPI network analysis determined the top 10 hub genes within the lysosome pathway (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>B). A Venn diagram revealed 3 proteins (PSAP, CTSL, and NPC2) shared across our current data, the public data set (PXD033034) and the top 10 hub genes (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>C). The mass spectrometry results indicated that the levels of PSAP (<i>P</i><sub>adj</sub> = 0.043), CTSL (<i>P</i><sub>adj</sub> = 0.028) and NPC2 (<i>P</i><sub>adj</sub> = 0.013) were significantly lower in the NS group compared to the nNS group (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>D). The PXD033034 data set revealed consistent changes in the PSAP, CTSL, and NPC2 levels in the NS group (<i>P</i><sub>adj</sub> &lt; 0.05) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Figure S1 and Table S4</a>). In addition, associations between the lysosomal protein DNASE2 and NS were observed in both the present study (<i>P</i><sub>adj</sub> = 0.003) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>D) and the PXD033034 data set (<i>P</i><sub>adj</sub> &lt; 0.05) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Figure S1 and Table S4</a>), with subgroup analysis revealing a significantly lower expression level of DNASE2 in the SNS group compared to the ANS group (<i>P</i> = 0.035) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>D and <a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Table S3</a>). Further validation by ELISA (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Table S5</a>) in an independent group (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#tbl1">Table 1</a>) confirmed significantly downregulated CSF levels of PSAP (<i>P</i> &lt; 0.0001), CTSL (<i>P</i> &lt; 0.0001), NPC2 (<i>P</i> = 0.0024) and DNASE2 (<i>P</i> &lt; 0.0001) in patients with NS (n = 21) than in nNS individuals (n = 56) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>E) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Table S6</a>), as well as decreased in the SNS subgroup (<i>P</i> &lt; 0.05) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Figure S2 and Table S6</a>). Receiver operating characteristic (ROC) curve analysis supported PSAP (AUC = 0.91, 95% CI: 0.83–0.99) and DNASE2 (AUC = 0.95, 95% CI: 0.91–0.99) for distinguishing NS from nNS and as potential biomarkers for assessing neurodegeneration in NS (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>F). These results indicate that <i>T. pallidum</i> infection may lead to lysosomal dysfunction in CNS.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/J_Proteome_Res_2026_25_2_713_722_Figure_2_Downregulation_of_key_lysosomal_proteins_in_the_cerebrospinal_fluid_of_neurosyphilis_patients_bbccd95f44.jpg" alt="J. Proteome Res. 2026, 25, 2, 713–722: Figure 2. Downregulation of key lysosomal proteins in the cerebrospinal fluid of neurosyphilis patients. (a) KEGG pathway analysis demonstrated that downregulated proteins in patients with NS were significantly enriched in the lysosome pathway, as well as in axon guidance and neurodegeneration. (b) The top 10 hub genes involved in the lysosome pathway were identified using the STRING network data set and PPI analysis. (c) A Venn diagram revealed 3 proteins (PSAP, CTSL, and NPC2) shared across our current data, the public data set (PXD033034) and the top 10 hub genes. (d) The CSF levels of PSAP (Padj = 0.043), CTSL (Padj = 0.028), DNASE2 (Padj = 0.003) and NPC2 (Padj = 0.013) were significantly decreased in the NS group than in the nNS group. Subgroup analysis found a significantly lower expression level of DNASE2 in the SNS group than in the ANS group (P = 0.035). (e) PSAP, DNASE2, CTSL and NPC2 levels in CSF were tested by ELISA in the nNS (n = 56) and NS (n = 21) groups. Compared with those in the nNS group, significantly lower PSAP (P &lt; 0.0001), CTSL (P &lt; 0.0001), DNASE2 (P &lt; 0.0001) and NPC2 (P = 0.0024) levels were detected in the NS group. (f) ROC curve analysis for NS revealed that PSAP had an AUC = 0.91 (95% CI: 0.83–0.99), DNASE2 had an AUC = 0.95 (95% CI: 0.91–0.99), CTSL had an AUC = 0.85 (95% CI: 0.76–0.95), and NPC2 had an AUC = 0.72 (95% CI: 0.59–0.85). NS: neurosyphilis; nNS: non-neurosyphilis; ANS: asymptomatic neurosyphilis; SNS: symptomatic neurosyphilis. ROC: receiver operating characteristic; AUC: area under the curve. * P &lt; 0.05, ** P &lt; 0.01, ****P &lt; 0.0001." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_J_Proteome_Res_2026_25_2_713_722_Figure_2_Downregulation_of_key_lysosomal_proteins_in_the_cerebrospinal_fluid_of_neurosyphilis_patients_bbccd95f44.jpg 140w," sizes="100vw" width="2100" height="2339"></p><h5><strong>Downregulation of Key Axonal Proteins Correlated with Lysosomal Protein Reduction in Neurosyphilis CSF</strong></h5><p>Lysosomes play crucial roles in neuronal health by maintaining axonostasis. <a href="javascript:void(0);">(10)</a> The enrichment analysis indicated that the downregulated proteins in NS were implicated in the biological processes of axonostasis (such as axon development and axonogenesis) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig1">Figure 1</a>F) and the pathway of axon guidance (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig2">Figure 2</a>A). Our proteomic data revealed a total of 24 downregulated (<i>P</i><sub>adj</sub> &lt; 0.05) axonal proteins and 1 upregulated (<i>P</i><sub>adj</sub> &lt; 0.05) axonal protein in the CSF of patients with NS (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Table S9</a>). Furthermore, the PXD033034 data set revealed 55 downregulated (<i>P</i><sub>adj</sub> &lt; 0.05) and 4 upregulated (<i>P</i><sub>adj</sub> &lt; 0.05) axonal proteins in NS (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acs.jproteome.5c00689/suppl_file/pr5c00689_si_001.zip">Table S9</a>). The top 10 hub genes involved in the biological processes of axon development and axonogenesis were identified by PPI network analysis (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig4">Figure 4</a>A). Considering the overlap of our current data, the PXD033034 data set and the top 10 hub genes (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig4">Figure 4</a>B), one key protein, EPHA4, was identified across 3 data sets, with significant downregulation in our current data (<i>P<sub>adj</sub></i> = 0.011) and in the PXD033034 data set (<i>P<sub>adj</sub></i> = 0.028) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig4">Figure 4</a>C). Correlation analysis further revealed a positive correlation between the levels of PSAP and EPHA4 (<i>r</i> = i 0.83, <i>P</i> &lt; 0.05) (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acs.jproteome.5c00689#fig4">Figure 4</a>D). Reduced levels of PSAP and EPHA4 in CSF have been implicated in neurodegenerative diseases, including Alzheimer’s disease (AD) and Parkinson’s disease (PD). <a href="javascript:void(0);">(11,12)</a> Our findings suggest that coordinated dysregulation of lysosomal and axonal proteins may contribute to neurodegeneration in NS.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/J_Proteome_Res_2026_25_2_713_722_Figure_4_Key_axonal_protein_downregulated_in_CSF_from_patients_with_neurosyphilis_66f5533e94.jpg" alt="J. Proteome Res. 2026, 25, 2, 713–722: Figure 4. Key axonal protein downregulated in CSF from patients with neurosyphilis. (a) The top 10 hub genes involved in axonostasis were identified by the STRING network data set and PPI analysis. (b) A Venn diagram revealed 1 protein (EPHA4) shared across DEPs related to axonostasis in our current data and in the public data set (PXD033034) and the top 10 hub genes. (c) EPHA4 was significantly downregulated both in our present study (Padj = 0.011) and in the PXD033034 data set (Padj = 0.028). (d) Correlation analysis demonstrated that the EPHA4 level was significantly positively correlated (P &lt; 0.05) with the levels of PSAP (r = 0.83), CTSL (r = 0.6), NPC2 (r = 0.69), DNASE2 (r = 0.61) and SEMA7A (r = 0.83). NS: neurosyphilis; nNS: non-neurosyphilis. * P &lt; 0.05." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_J_Proteome_Res_2026_25_2_713_722_Figure_4_Key_axonal_protein_downregulated_in_CSF_from_patients_with_neurosyphilis_66f5533e94.jpg 178w," sizes="100vw" width="1250" height="1096"></p><h4><strong>Conclusions</strong></h4><p>The present study reveals the associations of dysregulated proteins in lysosomal and axonal pathways with neurosyphilis, and potential evidence of shared pathophysiological mechanisms between neuroinflammation caused by <i>T. pallidum</i> infection and neurodegenerative diseases.</p><p>However, this study has certain limitations. First, the use of ELISA to validate a limited number of proteins has certain limitations, such as the inherent cross-reactivity of ELISA. In the future, we can optimize the validation experiments by adding techniques such as Western blotting for verification. Second, this study uses a cross-sectional sampling method for research, which limits our ability to infer disease progression and treatment responses. In the future, we will conduct follow-up on the subjects, continue collecting cerebrospinal fluid samples after treatment, and observe whether the protein dysregulation is reversible after treatment. For spNS patients, follow-up should also be conducted to determine if they have transformed into NS, which will be very valuable for validating the predictive utility of our biomarkers. Finally, although multiple discovery and validation cohort studies have been conducted, we currently lack direct mechanistic evidence. Future work will investigate whether exposing neural cell coculture models to outer-membrane antigens of <i>T. pallidum</i> reproduces the lysosome and axon alterations observed in CSF, clarifying their role in neural damage of neurosyphilis and potential biomarkers for diagnosis and treatment of neurodegeneration in neurosyphilis.</p></div>

Cerebrospinal Fluid Proteome Reveals Dysregulation of Lysosomal and Axonal Proteins in Neurosyphilis

<p><strong>In the week of May 11, the following webinars await you in the field of liquid phase and especially HPLC and LC/MS.</strong></p><blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinars"><strong>👉 DETAILS AND REGISTRATION IN THE WEBINARS SECTION</strong></a></h4><p><strong>👉 Search and filter in the largest global database</strong> with over <strong>5 500 GC, LC, MS and spectroscopy webinars</strong>.</p></blockquote><h5><strong>1. Thermo Fisher Scientific: Uncovering Microplastics: Identification, Quantification, and Exposure Assessment</strong></h5><ul><li>Tu, 12.5.2026 08:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinar/6136">Registration</a></li></ul><p>In this webinar, we will explore complementary analytical solutions for comprehensive microplastics characterization.</p><h5><strong>2. Waters Corporation: Size variant analysis of antibodies and ADCs using SEC, SEC-MALS, SEC-MS, and 2D Protein A-SEC Methods</strong></h5><ul><li>Tu, 12.5.2026 17:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinar/6169">Registration</a></li></ul><p>Size-exclusion chromatography (SEC) is essential for analyzing aggregates, monomers, and fragments in biotherapeutic proteins.</p><h5><strong>3. Waters Corporation: Beyond C18 and Phenyl: Expanding Selectivity with Biphenyl Columns Built for UV and pH Robustness</strong></h5><ul><li>We, 13.5.2026 16:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinar/6183">Registration</a></li></ul><p>Discover how modern biphenyl stationary phases improve challenging LC separations with lower UV bleed, broad pH stability, and enhanced recovery of metal-sensitive analytes.</p><h5><strong>4. Milestone: Modern Sample Prep for Organic Contaminants: PAHs, PFAS, MOSH/MOAH in Food</strong></h5><ul><li>We, 13.5.2026 16:00 CET</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinar/5822">Registration</a></li></ul><p>Learn how microwave-assisted extraction streamlines food analysis of PAHs, PFAS, and MOSH/MOAH, improving recoveries, reducing solvents, and meeting regulatory demands.</p><h5><strong>5. SelectScience: Achieve faster GLP-1 amino acid analysis with rapid UPLC technology</strong></h5><ul><li>We, 13.5.2026 17:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinar/6173">Registration</a></li></ul><p>Accelerate GLP-1 amino acid analysis. Learn how UPLC, microwave hydrolysis and Waters AccQ-Tag solutions speed up drug development and ensure compliance.</p><h5><strong>6. Waters Corporation: Transform Your Daily Lab Operations with Automation - Biomolecules Workflows</strong></h5><ul><li>Th, 14.5.2026 11:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinar/6174">Registration</a></li></ul><p>Discover how Andrew+ and OneLab automate complex biomolecule workflows. Learn how labs improve consistency, traceability, and efficiency in oligonucleotide and peptide analysis.</p>

Webinars LabRulezLCMS Week 20/2026

Article

Webinars

Health

Scientific article

Science and research

Since its establishment in 2011, CEITEC has quickly developed into a cutting-edge infrastructure for research which performs highly alongside the best institutes in Europe. Among the main priorities of CEITEC are the promotion of a motivating and dynamic international scientific environment, the provision of state-of-the-art research infrastructure, and the policy of open communication and equal opportunities.

CEITEC

Everything from the world of analytical chemistry in one place. We connect people in solving their problems. At Labrulez you will find all the necessary information easily, quickly and clearly. Stop searching and start finding.

LabRulez

Galochrom Chiral ION-QD HPLC columns

These HPLC columns are based on high-quality spherical silica from the world's leading silica manufacturer from Japan.

<p><strong>Chiral ion exchanger GEN-QD is highly efficient in the enantiomer resolution of acidic compounds.</strong></p><p>This product is now available in high quality and at a reasonable price at our company!</p><p>To create our <strong>chiral sorbent</strong>, we use <strong>3µm fully porous spherical silica particles</strong>, which provide greater efficiency than the original product.</p><p>Additionally, our <strong>Galo-ION-QD-200</strong> is recommended for <strong>biological applications</strong> due to its larger pore size, which improves the separation efficiency for large molecules.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Galochrom_Chiral_ION_QD_HPLC_kolony_ION_QD_selector_10dd9c7ee5.jpg" alt="Galochrom: Galochrom Chiral ION-QD selector."></p><h5><strong>Premium Quality</strong></h5><p>In every manufactured product, we guarantee the highest standards of quality.</p><h5><strong>Cost-effective</strong></h5><p>Our unique products optimize your budget &amp; enhance efficiency in your laboratory operations.</p><h5><strong>High-performance</strong></h5><p>Besides their outstanding performance, our HPLC columns also expand your separation possibilities.</p><h3><strong>Ordering information</strong></h3><blockquote><p><strong>Stationary phase Chiral ION-QD is provided in these column types: analytical and preparative</strong></p></blockquote><h4><strong>Analytical Columns</strong></h4><ul><li><strong>Dimensions [mm]: 150 x 3</strong></li><li>Porosity: [Å] 200</li><li>Cat. No.: ION02-A150</li><li><strong>Price [€]: 1 300</strong></li></ul><blockquote><h4><strong>Get up to a 20% discount on your first purchase with us.</strong></h4></blockquote><h3><strong>Reach new heights</strong></h3><p>Spend more time on testing and less time on troubleshooting</p><blockquote><h4><strong>How can our unique columns help you succeed?</strong></h4><p>Chiral ION-QN and Chiral ION-QD empower researchers with their daily tasks, such as:</p><ul><li>Seamless method development</li><li>Enantioseparation</li><li>Quality control</li><li>Monitoring of asymmetric reactions</li><li>Intermolecular interaction studies</li><li>Pharmacokinetic studies</li><li>Preparative separation</li><li>Production scale-up</li><li>Efficient purification</li></ul></blockquote><h4><strong>What makes Chiral </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1241"><strong>ION-QN</strong></a><strong> and ION-QD unique?</strong></h4><p><span style="font-size:20px;"><strong>Designed for stability</strong></span></p><p>The manufacturing of Chiral ION-QN and Chiral ION-QD was designed to produce highly reproducible and reliable HPLC columns. Our high standards in synthesis of organic selectors and robust packing technology ensures that each customer receives identical high-performance product.</p><p><strong>The chromatographic results are reproducible from run-to-run, column-to-column and batch-to-batch.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_1_9dea7516f4.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - Designed for stability." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_1_9dea7516f4.jpg 245w," sizes="100vw" width="655" height="376"></p><p>During our manufacturing, we implement strict quality control measures over all aspects from silica chemistry up to column packing. As a result, almost no variation is observed among manufactured batches of chiral stationary phases.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_2_50c42d67e6.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - Designed for stability." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_2_50c42d67e6.jpg 245w," sizes="100vw" width="1176" height="442"></p><h3><strong>Achieve your results</strong></h3><p>Increase your productivity with uniform, stable, and reproducible results</p><h4><strong>High-Quality Silica</strong></h4><p>Our columns contain fully-porous spherical particles from world’s leading manufacturer based in Japan. These ultra-pure silica particles have narrow size distribution to ensure reproducible, robust and reliable results.</p><p>In comparison to other manufacturers, Galochrom’s custom packing technology produces very stable and uniform bed with intact silica particles. As a<br>result, our columns:</p><ul><li>Enhance productivity and resolution</li><li>Provide accurate and consistent performance</li><li>Generate significantly higher plate counts</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_High_Quality_Silica_522d14ecf7.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - High-Quality Silica." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_High_Quality_Silica_522d14ecf7.jpg 245w," sizes="100vw" width="617" height="386"></p><h4><strong>Elution Order</strong></h4><p>Chiral ION-QN and Chiral ION-QD represent a pair of columns that enable the reversal of elution order of enantiomers.<strong> Now you can position your desired enantiomer first and easily achieve 100% purity at higher pace.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Elution_Order_85c5b02411.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - Elution Order." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Elution_Order_85c5b02411.jpg 245w," sizes="100vw" width="953" height="545"></p><p>The elution order was investigated with other QN/QD derivatives using enantiomeric pairs of Leucine derivatives. The conclusions for the first eluent are following:</p><ul><li>Chiral ION-QN ⇒ L-Enantiomer</li><li>Chiral ION-QD ⇒ D-Enantiomer</li></ul>

Galochrom Chiral ION-QN HPLC columns

These HPLC columns are based on high-quality spherical silica from the world's leading silica manufacturer from Japan. 

<p><strong>Our company is proud to offer the Galo ION-QN chiral ion exchanger, which is capable of efficiently separating enantiomers of acidic compounds.</strong></p><p>This product is now available in high quality and at a reasonable price at our company!</p><p>To create our <strong>chiral sorbent</strong>, we use <strong>3µm fully porous spherical silica particles</strong>, which provide greater efficiency than the original product.</p><p>Additionally, our <strong>Galo-ION-QN-200</strong> is recommended for <strong>biological applications</strong> due to its larger pore size, which improves the separation efficiency for large molecules.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Galochrom_Chiral_ION_QN_HPLC_kolony_ION_QN_selector_f3789cb2c1.jpg" alt="Galochrom: Galochrom Chiral ION-QN selector."></p><h5><strong>Premium Quality</strong></h5><p>In every manufactured product, we guarantee the highest standards of quality.</p><h5><strong>Cost-effective</strong></h5><p>Our unique products optimize your budget &amp; enhance efficiency in your laboratory operations.</p><h5><strong>High-performance</strong></h5><p>Besides their outstanding performance, our HPLC columns also expand your separation possibilities.</p><h3><strong>Ordering information</strong></h3><blockquote><p><strong>Stationary phase Chiral ION-QN is provided in these column types: analytical and preparative</strong></p></blockquote><h4><strong>Analytical Columns</strong></h4><ul><li><strong>Dimensions [mm]: 150 x 3</strong></li><li>Porosity: [Å] 200</li><li>Cat. No.: ION01-A150</li><li><strong>Price [€]: 1 300</strong></li></ul><blockquote><h4><strong>Get up to a 20% discount on your first purchase with us.</strong></h4></blockquote><h3><strong>Reach new heights</strong></h3><p>Spend more time on testing and less time on troubleshooting</p><blockquote><h4><strong>How can our unique columns help you succeed?</strong></h4><p>Chiral ION-QN and Chiral ION-QD empower researchers with their daily tasks, such as:</p><ul><li>Seamless method development</li><li>Enantioseparation</li><li>Quality control</li><li>Monitoring of asymmetric reactions</li><li>Intermolecular interaction studies</li><li>Pharmacokinetic studies</li><li>Preparative separation</li><li>Production scale-up</li><li>Efficient purification</li></ul></blockquote><h4><strong>What makes Chiral ION-QN and </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1240"><strong>ION-QD</strong></a><strong> unique?</strong></h4><p><span style="font-size:20px;"><strong>Designed for stability</strong></span></p><p>The manufacturing of Chiral ION-QN and Chiral ION-QD was designed to produce highly reproducible and reliable HPLC columns. Our high standards in synthesis of organic selectors and robust packing technology ensures that each customer receives identical high-performance product.</p><p><strong>The chromatographic results are reproducible from run-to-run, column-to-column and batch-to-batch.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_1_9dea7516f4.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - Designed for stability." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_1_9dea7516f4.jpg 245w," sizes="100vw" width="655" height="376"></p><p>During our manufacturing, we implement strict quality control measures over all aspects from silica chemistry up to column packing. As a result, almost no variation is observed among manufactured batches of chiral stationary phases.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_2_50c42d67e6.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - Designed for stability." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Designed_for_stability_2_50c42d67e6.jpg 245w," sizes="100vw" width="1176" height="442"></p><h3><strong>Achieve your results</strong></h3><p>Increase your productivity with uniform, stable, and reproducible results</p><h4><strong>High-Quality Silica</strong></h4><p>Our columns contain fully-porous spherical particles from world’s leading manufacturer based in Japan. These ultra-pure silica particles have narrow size distribution to ensure reproducible, robust and reliable results.</p><p>In comparison to other manufacturers, Galochrom’s custom packing technology produces very stable and uniform bed with intact silica particles. As a<br>result, our columns:</p><ul><li>Enhance productivity and resolution</li><li>Provide accurate and consistent performance</li><li>Generate significantly higher plate counts</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_High_Quality_Silica_522d14ecf7.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - High-Quality Silica." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_High_Quality_Silica_522d14ecf7.jpg 245w," sizes="100vw" width="617" height="386"></p><h4><strong>Elution Order</strong></h4><p>Chiral ION-QN and Chiral ION-QD represent a pair of columns that enable the reversal of elution order of enantiomers.<strong> Now you can position your desired enantiomer first and easily achieve 100% purity at higher pace.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Elution_Order_85c5b02411.jpg" alt="Galochrom: Chiral ION-QN &amp; Chiral ION-QD HPLC columns - Elution Order." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Galochrom_Chiral_ION_QN_and_Chiral_ION_QD_HPLC_columns_Elution_Order_85c5b02411.jpg 245w," sizes="100vw" width="953" height="545"></p><p>The elution order was investigated with other QN/QD derivatives using enantiomeric pairs of Leucine derivatives. The conclusions for the first eluent are following:</p><ul><li>Chiral ION-QN ⇒ L-Enantiomer</li><li>Chiral ION-QD ⇒ D-Enantiomer</li></ul>

KNAUER HPLC, UHPLC, preparative HPLC and GPC columns

 KNAUER offers about 6,000 columns for analytical HPLC and UHPLC applications as well as for purification tasks in the preparative scale. 

<p><strong>Columns for analytical HPLC, UHPLC, preparative HPLC and GPC</strong></p><p>In the field of analytical HPLC columns we can offer a solution for nearly any analytical separation task. <strong>KNAUER offers about 6,000 columns for analytical HPLC and UHPLC applications as well as for purification tasks in the preparative scale.</strong></p><h3><strong>Which column do you need?</strong></h3><h4><strong>(U)HPLC of small molecules</strong></h4><p><strong>Silica gel based KNAUER columns for HPLC and UHPLC</strong> in the most often used separation modes:&nbsp;</p><ul><li>Reversed Phase (RP)</li><li>Normal Phase (NP)</li><li>Hydrophilic Interaction Liquid Chromatography (HILIC)</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Knauer_LC_Columns_1_b84b390b6b.jpg" alt="Knauer: LC RP Columns " srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Knauer_LC_Columns_1_b84b390b6b.jpg 245w," sizes="100vw" width="779" height="466"></p><h4><strong>Enantioseparation of racemates</strong></h4><p><strong>Chiral HPLC columns - </strong>Available in a wide range of dimensions for analytical, preparative and SMB (simulated moving bed) applications, Eurospher II Chiral columns are the perfect choice for even the most challenging enantioseparation tasks.</p><p>As chiral separations are not very well predictable, KNAUER offers a chiral screening service for your Samples.&nbsp;</p><h4><strong>HPLC of sugars, organic acids and alcohols</strong></h4><p><strong>Ion exclusion and ligand exchange columns - </strong>Based on a sulfonated cross-linked styrenedivinylbenzene copolymer and available in several ionic forms (H, Ca, Pb and Ag). This particular cation exchanger is characterized by an outstanding density of functional groups, making it the ideal choice for your ion exclusion, size exclusion and ligand exchange chromatography.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Knauer_LC_Columns_4_with_precolumn_short_aaee66b110.jpg" alt="Knauer: LC Columns - 4 with precolumn-short" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Knauer_LC_Columns_4_with_precolumn_short_aaee66b110.jpg 245w," sizes="100vw" width="1330" height="580"></p><h4><strong>HPLC of Biomolecules</strong></h4><p><strong>Analytical wide pore HPLC columns </strong>- The use of larger pore silica-based bonded phases leads to improvements in resolution, capacity and recovery of proteins and other biomolecules, due to a reduction in size exclusion mechanism and enhanced molecular diffusion rates. A pore size of 300 Å has become the accepted standard for wide pore silica gels because it has been found to be suitable for a broad range of molecular weight proteins, peptides and oligonucleotides. In general, peptides exceeding approximately 50 amino acids and oligonucleotides greater than 25 residues are preferentially analyzed on 300 Å materials.</p><h4><strong>GPC/SEC columns</strong></h4><ul><li>AppliChrom® GPC/SEC columns for biopolymers and aqueous&nbsp;polymers</li><li>AppliChrom® GPC columns for GPC analysis of organic molecules using THF, toluene, chloroform</li><li>AppliChrom GPC columns for GPC analysis organic (DMAc or DMF)</li><li>Optimized for DMSO-GPC applications</li><li>Special GPC/SEC-columns for aqueous analysis of neutral, anionic and additional cationic polymers</li></ul><h4><strong>Preparative HPLC Column hardware</strong></h4><p>Preparative HPLC columns can be offered with two different hardware types:</p><ul><li>Versatile standard flanged hardware for nearly any application task in batch chromatography</li><li>dAX Hardware with static and dynamic axial compression for an extended lifetime and multi-column chromatography like SMB processes</li></ul><h4><strong>Analytical HPLC Column hardware</strong></h4><p><strong><u>Available analytical HPLC column dimensions </u></strong>- <strong>Analytical KNAUER columns with ID 3, 4 and 4.6 mm are available with and without integrated precolumn.</strong></p><p>Every KNAUER column is tested separately to guarantee highest quality. We highly recommend using a precolumn to protect the valuable main column and extend the lifetime significantly.&nbsp;</p><p><strong>Afraid that a precolumn adds volume to your system and deteriorates your results?</strong></p><p>KNAUER columns that are delivered with an integrated precolumn are also tested in this configuration so that the user can be sure about the function and quality. The same quality standards as for columns without integrated precolumn apply. KNAUER guarantees that there is no loss in performance when a precolumn is integrated properly.</p><p><strong>Exchanging the precolumn is very easy! Klick the button below to get an instruction.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Knauer_LC_Columns_available_dimensions_chart_0c73a3271d.jpg" alt="Knauer: LC Columns - available dimensions chart" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Knauer_LC_Columns_available_dimensions_chart_0c73a3271d.jpg 218w," sizes="100vw" width="755" height="541"></p><h4><strong>FPLC columns</strong></h4><p><strong>Agarose nad dextran-based FPLC columns fo protein prurification</strong></p><p>High-quality FPLC columns to reach your purification goal - KNAUER Sepapure® FPLC columns&nbsp;</p><p>Sepapure<sup>®</sup> FPLC columns and resins for all common protein purification tasks: size exclusion chromatography (SEC), affinity chromatography (AC) and ion-exchange chromatography (IEX)</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Knauer_LC_Columns_SEPAPURE_Q_FF_2f1fef3613.jpg" alt="Knauer: LC Columns - SEPAPURE Q FF" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Knauer_LC_Columns_SEPAPURE_Q_FF_2f1fef3613.jpg 240w," sizes="100vw" width="947" height="616"></p><h3><strong>KNAUER LC column brands</strong></h3><h4><strong>Eurospher I</strong></h4><ul><li><strong>HPLC columns for every day</strong></li><li>Suited for a wide range of analytical, semi-preparative and process scale separations in normal phase and reversed phase mode.</li></ul><h4><strong>Eurospher II:&nbsp;</strong></h4><ul><li><strong>Advanced HPLC / UHPLC columns</strong></li><li><strong>Eurospher II is introduced as the new workhorse for an even wider range of application areas</strong>, suitable for analytical, semi-preparative and process-scale separations.</li><li>The logical choice to take on routine analyses as well as the most ambitious chromatoraphy tasks.</li></ul><h4><strong>Eurospher II Chiral</strong></h4><ul><li><strong>Enantioseparation of racemates</strong></li><li>The chiral stationary phases (CSPs) of KNAUER’s Eurospher® II Chiral HPLC columns were designed to tackle a wide range of chiral separation tasks.</li></ul><h4><strong>Eurosil Bioselect</strong></h4><ul><li><strong>HPLC columns for bioanalytics</strong></li><li>Eurosil Bioselect columns feature a wide-pore stationary phase and were specifically designed to separate large biomolecules such as proteins and peptides.</li></ul><h4><strong>Eurokat</strong></h4><ul><li><strong>HPLC columns for food analysis</strong></li><li>Eurokat columns are valuable for food analysis and especially developed for the separation of organic acids, carbonhydrates, alcohols and even complex mixtures of these compounds.</li></ul>

ECOM Separchrom PC01-HPLC Industrial Preparative Columns with Axial Compression

Separchrom PC01 ECOM industrial preparative columns correspond to the highest requirements of preparative liquid chromatography. They are designed to be used in a mode of axial compression with a moving input piston. 

<div style="display:block;" aria-labelledby="tab_item-0"><p><strong>HPLC Columns for prep chromatography. High performance columns with axial compression.</strong></p><p><strong>Separchrom PC01 ECOM</strong> <strong>columns</strong> correspond to the highest requirements of <strong>preparative liquid chromatography</strong>. They are designed to be used in a mode of axial compression with a moving input piston. In the original design, they are equipped with identical pistons on input and output (biaxial compression as an option). In the ECOM Separchrom PC FE modification, they have a fixed end plate on the output instead of the piston. Pistons and plates are equipped with frits. A liquid distributing system is installed under each frit. The design guarantees perfect piston flow, high efficiency even for high injection volume, and simple accessibility of frits for cleaning. Columns can be packed by dynamic slurry method or by sedimentation or with sorbent in a dry state.</p><p><strong>SEPARCHROM PC 01 ECOM columns</strong> are made of stainless steel AISI 316L (tube inner surface is polished to reach Ra &lt; 0.3 µm) with stainless steel pistons and UHMWPE (PTFE on the request) sealing rings. The stroke of the main piston is proportional to the used hydraulic cylinder or flange bolt length. Pistons are sectional; the frit (sintered mesh disc 3 µm pore size, 5 mm thickness) with the frit ring can be removed. The output plate in the FE version is made of UHMWPE, frit is fixed with a simple frit ring. Column flanges are not welded, but screwed onto the column tube. No temperature increase during manufacturing means no change in steel properties. The column stand made of stainless steel profiles is included for columns over 100 mm I.D.</p><p>Hydraulic cylinders fitted on the upper flange are offered with manual oil pumps as well as with fully automated electric motor-driven devices for column packing/unpacking procedures.</p><h3><strong>Accessories</strong></h3><p>Columns are offered with a broad scale of accessories such as filling adapters, slurry mixing vessels, slurry transporting pumps, etc.</p><h3><strong>COLUMN CONFIGURATION EXAMPLES</strong></h3><p>Columns are custom-made, do not hesitate to ask for any other sizes within the possible ranges</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ECOM_Separchrom_PC_01_HPLC_Column_available_configuration_part_1_1795482301.jpg" alt="ECOM: Separchrom PC01-HPLC Column - available configuration - part 1" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ECOM_Separchrom_PC_01_HPLC_Column_available_configuration_part_1_1795482301.jpg 236w," sizes="100vw" width="1440" height="952"><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ECOM_Separchrom_PC_01_HPLC_Column_available_configuration_part_2_6d3198af67.jpg" alt="ECOM: Separchrom PC01-HPLC Column - available configuration - part 2" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ECOM_Separchrom_PC_01_HPLC_Column_available_configuration_part_2_6d3198af67.jpg 239w," sizes="100vw" width="1442" height="942"><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ECOM_Separchrom_PC_01_HPLC_Column_available_configuration_part_3_9fd77a1054.jpg" alt="ECOM: Separchrom PC01-HPLC Column - available configuration - part 3" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ECOM_Separchrom_PC_01_HPLC_Column_available_configuration_part_3_9fd77a1054.jpg 245w," sizes="100vw" width="1435" height="315"></p></div>

ECOM Separchrom PC02-MPLC (Medium-pressure) Columns for Prep Chromatography

Industrial-scale Preparative Columns PC02 - Columns for medium-pressure with axial bed compression for prep chromatography.

<div style="display:block;" aria-labelledby="tab_item-0"><p><strong>ECOM Separchrom PC02 medium-pressure stainless steel columns are intended for separation where high pressure is not necessary, but good efficiency can still be expected. They are made of stainless steel tubes.</strong></p><p>Part of the column is an <strong>input piston made of ultra-high molecular weight polyethylene</strong> and it is equipped with <strong>stainless steel support</strong> and <strong>stainless steel mesh frit</strong>. Flow distributor with groves is incorporated into the piston to guarantee piston flow with nearly zero pressure drop. The design guarantees simple accessibility of frits for cleaning.</p><p>Columns can be <strong>packed by dynamic slurry method</strong>, or <strong>by sedimentation</strong>, or <strong>with sorbent in the dry state</strong>, both with <strong>silica</strong> and <strong>polymer sorbents</strong>. For soft polymer sorbents, ECOM Separchrom PC02 oil systems can be equipped with a special software application to compensate for the swelling and unswelling of sorbents in different mobile phases (the column piston is moved in very small steps up and down during use).</p><h3><strong>Materials</strong></h3><p>Medium pressure prep chromatography column ECOM SEPARCHROM PC 02 is made of AISI 316L stainless steel, UHMWE moving pistons are equipped with integral sealing wings. Frits (stainless steel mesh 5 µm pore size, 5 mm thickness) can be fixed with a stainless steel ring. The stand made of stainless steel profiles is included.</p><h3><strong>COLUMN CONFIGURATION EXAMPLES</strong></h3><p>Columns are custom-made, do not hesitate to ask for any other sizes within the possible ranges</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ECOM_Separchrom_PC_02_HPLC_Column_available_configuration_part_1_dfb61faf03.jpg" alt="ECOM: Separchrom PC02-HPLC Column - available configurations - part 1" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ECOM_Separchrom_PC_02_HPLC_Column_available_configuration_part_1_dfb61faf03.jpg 245w," sizes="100vw" width="1641" height="939"><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ECOM_Separchrom_PC_02_HPLC_Column_available_configuration_part_2_cb9f807757.jpg" alt="ECOM: Separchrom PC02-HPLC Column - available configurations - part 2" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ECOM_Separchrom_PC_02_HPLC_Column_available_configuration_part_2_cb9f807757.jpg 245w," sizes="100vw" width="1645" height="364"></p></div>

ECOM Separchrom PC04-Non-metal Columns for Prep Chromatography

Industrial-scale preparative non-metal columns for prep chromatography with axial compression correspond to the highest requirements of preparative liquid chromatography. 

<div style="display:block;" aria-labelledby="tab_item-0"><p><strong>Polyethylene cartridge columns are usually intended for flash chromatography.</strong> We offer powerful<strong> ECOM Separchrom PC04 columns </strong>made of high-quality ultra-high molecular weight polyethylene, equipped with moving pistons and with no metal in contact with the mobile phase. Non-metal columns are required in biochromatography and some other special applications.</p><p>Plastic columns for preparative liquid chromatography <strong>ECOM SEPARCHROM PC 04</strong>, are unfilled, and made of ultra-high molecular weight polyethylene. They are equipped with the same pistons on the input and the output. The input piston is moved either by flange bolts (type A), or by a central stainless steel threaded rod (type B). The pistons are fitted with plastic polypropylene frits 10 µm and a distribution system.</p><h3><strong>COLUMN CONFIGURATION EXAMPLES</strong></h3><p>Columns are custom-made, do not hesitate to ask for any other sizes within the possible ranges</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ECOM_Separchrom_PC_04_HPLC_Column_available_configurations_8767eb40ae.jpg" alt="ECOM: Separchrom PC04-HPLC Column - available configurations" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ECOM_Separchrom_PC_04_HPLC_Column_available_configurations_8767eb40ae.jpg 245w," sizes="100vw" width="1645" height="823"></p></div>

ECOM ION-QN and ION-QD Chiral HPLC Columns

 Weak Anion-Exchanger (WAX) stationary phases for reliable chiral separation of organic acids and amino acids. The most efficient approach to purify and resolve even the most troublesome enantiomeric mixtures.

<p><strong>Weak Anion-Exchanger (WAX) stationary phases for reliable chiral separation of organic acids and amino acids.&nbsp;</strong></p><p>We introduce our own generic series of weak anion-exchangers, based on <strong>tert-butyl-carbamoylated Cinchona alkaloids quinine (QN)</strong> and <strong>quinidine (QD)</strong>. Our Chiral ION-QN and Chiral ION-QD columns contain a well-balanced pair of pseudoenantiomeric chiral selectors, designed to efficiently separate enantiomers of acidic compounds. These columns represent the most efficient approach to purify and resolve even the most troublesome enantiomeric mixtures.</p><h4><strong>Applications</strong></h4><ul><li>Chiral ION-QN and Chiral ION-QD are ideal for enantioseparations of chiral acidic compounds, including:</li><li>N-protected amino acids</li><li>Aminophosphonic &amp; Aminosulfonic acids</li><li>Lactic &amp; Thiolactic acids</li><li>Clenbuterol &amp; Thyroxine</li></ul><h4><strong>Key Benefits</strong></h4><ul><li>Provide better separation power and increased enantioselectivity (in comparison to other available alternatives)</li><li>Allow elegant switch of the elution order of enantiomers</li><li>Demonstrated high stability against all common HPLC solvents</li><li>Enable enhanced method development</li><li>Available at analytical and preparative scale</li></ul><h4><strong>Columns</strong></h4><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ECOM_Chiral_HPLC_Column_ION_QN_and_ION_QD_6_085a58fc5e.jpg" alt="ECOM: Chiral HPLC Column ION-QN and ION-QD" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ECOM_Chiral_HPLC_Column_ION_QN_and_ION_QD_6_085a58fc5e.jpg 245w," sizes="100vw" width="1059" height="531"></p><h4><strong>Features&nbsp;</strong></h4><ul><li><strong>Max. pressure</strong>: 5800 psi (400 bar)</li><li><strong>Particle size</strong>: 3 or 5 μm</li><li><strong>pH range</strong>: 2 to 9</li><li><strong>Pore size</strong>: 120 Å</li><li><strong>Surface area</strong>: 300 m²/g</li><li><strong>Max. temperature</strong>: 60 °C</li><li><strong>Packing material</strong>: Spherical, Fully Porous</li><li><strong>Carbon load</strong>: 13.0 %</li><li><strong>End-capped</strong>: Yes</li><li><strong>Product line</strong>: ION</li></ul><p>The mobile phase composition (methanol-formic acid-ammonium formate) has been optimized for preparative applications to provide high column loadability, fast analyte elution, and good peak shape. Moreover, the buffer allows for simple product harvesting by solvent evaporation and subsequent ammonium formate sublimation 50 °C / 10 torr.</p><p>The anion exchangers are perfect for the purification of organic acids and their chiral separation. They are very efficient in the chiral resolution of amino acids, but also other derivatives, such as amino phosphonic acids. Aminophosphonic acids are important precursors in the synthesis of phosphopeptidomimetics, which may potentially serve as new-generation pharmaceuticals.</p>

Phenomenex Axia Preparative LC Columns

Available in over 40 unique achiral and chiral selectivities, Axia advanced preparative column packings and column hardware designs offer several advantages.

<p class="cke-user_style-important"><strong>Guaranteed, Longest Lasting Preparative HPLC and SFC Column</strong></p><p>Available in over 40 unique achiral and chiral selectivities, Axia advanced preparative column packings and column hardware designs offer several advantages. Unlike traditional preparative HPLC column packing methods, the Axia packing method offers increased sorbent bed density for increased performance and eliminates media bed collapse as a source of premature column failure in preparative HPLC/SFC columns.</p><h3><strong>Axia Packed Preparative HPLC Columns</strong></h3><h4><strong>Axia Single Axial Compression Step</strong></h4><p>Axia packed preparative columns involve a single axial compression step, unlike conventional packed preparative columns. The ideal prep HPLC column bed density is custom calculated and automated for each specific media and column size. Computer control of the entire process ensures both proper bed density and column uniformity every time.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Axia_Packing_Technology_1785ff0442.jpg" alt="Phenomenex: Axia Packing Technology" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Axia_Packing_Technology_1785ff0442.jpg 245w," sizes="100vw" width="917" height="560"></p><h4><strong>Unmatched Column Reproducibility</strong></h4><p>The <strong>automated</strong> <strong>Axia™ packing system</strong> provides <strong>feedback control</strong> and <strong>infinite tuning</strong> of packing density for specific media characteristics such as mechanical strength and porosity. An optimum higher bed density can be consistently reproduced column-to-column. This directly translates into consistent efficiency and peak asymmetry measurements and decreases the column variability seen in traditionally packed preparative columns.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Unmatched_Column_Reproducibility_a752be8dd5.jpg" alt="Phenomenex: Unmatched Column Reproducibility" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Unmatched_Column_Reproducibility_a752be8dd5.jpg 245w," sizes="100vw" width="995" height="534"></p><h3><strong>Seamless Scalability to Increase Sample Load</strong></h3><h4><strong>Increase Column Length</strong></h4><p>Increase sample load without increasing your flow rate by using a longer column. With Axia technology, each preparative column is optimized for:</p><ul><li>Analytical-like efficiency</li><li>Long column lifetime</li><li>High sample load with high surface area media such as Kinetex, Aeris, Gemini, Luna, Luna Omega, or Synergi</li></ul><h4><strong>Increase Column ID</strong></h4><p>For maximizing load without increasing the run time, consider scaling up to a larger column ID. Axia packed columns provide the three important benefits you need.</p><ul><li>Reproducible performance across all column diameters</li><li>Increased throughput without sacrificing purity</li><li>High efficiency from analytical to preparative</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Increase_Column_ID_a45d7f8aa3.jpg" alt="Phenomenex: Increase Column ID" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Increase_Column_ID_a45d7f8aa3.jpg 156w," sizes="100vw" width="908" height="910"></p><h3><strong>Axia Technology Outperforms Traditional Packing Processes!</strong></h3><p>Because of the constant pressure placed on the integrated packing piston, Axia packed columns possess the dynamic capability of maintaining a consistent, homogeneous media bed. This results in superior column performance no matter which media selectivity you choose.</p><h3><strong>How to choose the right column</strong></h3><h5><strong>Acidic Compounds</strong></h5><ul><li>Kinetex XB-C18</li><li>Gemini C18</li></ul><h5><strong>Aromatic</strong></h5><ul><li>Luna Phenyl-Hexyl</li><li>Kinetex Biphenyl</li></ul><h5><strong>Closely Related Compounds</strong></h5><ul><li>Kinetex F5</li><li>Luna PFP(2)</li></ul><h5><strong>Extremely Hydrophobic</strong></h5><ul><li>Kinetex C8</li><li>Luna C8(2)</li></ul><h5><strong>Extremely Polar</strong></h5><ul><li>Luna HILIC(2)</li><li>Kinetex HILIC</li></ul><h5><strong>Hydrophobic Compounds</strong></h5><ul><li>Luna C18(2)</li><li>Kinetex C18</li></ul><h5><strong>Polar Acids</strong></h5><ul><li>Luna Omega Polar C18</li><li>Kinetex Polar C18</li></ul><h5><strong>Polar Bases</strong></h5><ul><li>Luna Omega PS C18</li><li>Kinetex PS C18</li></ul><h5><strong>Sugars</strong></h5><ul><li>Luna NH(2)</li></ul><h5><strong>Chiral</strong></h5><ul><li>Lux i-Amylose-3</li><li>Lux Cellulose-1</li></ul>

Phenomenex Biozen Glycan LC columns

The unique selectivity of the Biozen Glycan was designed to provide higher order separations of released and labeled glycans. 

<p>The unique selectivity of the <strong>Biozen Glycan</strong> was designed to provide higher order separations of released and labeled glycans. With a <strong>2.6 μm core-shell particle size</strong>, customers using either <strong>HPLC</strong> or <strong>UHPLC systems</strong>, can draw upon a high efficiency Biozen Glycan particle run at higher linear velocities, to easily provide sharper peak shapes and faster elution windows, without high UHPLC pressures. Under <strong>HILIC-FLR</strong> or <strong>HILIC-MS</strong> conditions, the Biozen Glycan excels with increased polar retention and selectivity.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Biozen_Glycan_HPLC_Column_d8ed8d30af.webp" alt="Phenomenex: Biozen Glycan HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Biozen_Glycan_HPLC_Column_d8ed8d30af.webp 245w," sizes="100vw" width="500" height="150"></p><ul><li><strong>Separation Mode:</strong> HILIC</li><li><strong>Pore Size</strong>: 100</li><li><strong>Particle size: </strong>2.6</li><li><strong>Recommended Use:</strong> High efficiency and selectivity for released glycans</li></ul><h3><strong>Phenomenex Biozen Biologics LC Columns</strong></h3><p>With a new titanium <strong>BioTi™</strong> biocompatible <strong>hardware</strong> to minimize priming, <strong>four particle platforms</strong> for optimal versatility and <strong>nine particle chemistries</strong> to maximize selectivity and sensitivity, Biozen UHPLC/HPLC columns for <strong>protein analysis</strong> are seamlessly designed to bring peace of mind to your analysis of biologics through:</p><ul><li>Charge Variant Analysis</li><li>Aggregate Analysis</li><li>Peptide Mapping</li><li>Intact Mass Analysis</li><li>Intact and Subunit Analysis</li><li>Glycan Analysis</li><li>Peptide Quantitation</li><li>Drug Antibody Ratio (DAR)</li><li>Oligonucleotide Characterization</li></ul><h3><strong>Biocompatible Flow Path with BioTi™ Hardware</strong></h3><p>Keep your mind at ease knowing that we’ve minimized the need for priming with a new titanium infused biocompatible hardware and frit that doesn’t interfere with protein or peptide integrity!</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Bio_Ti_Hardware_991fb53395.jpg" alt="Phenomenex: BioTi Hardware" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Bio_Ti_Hardware_991fb53395.jpg 245w," sizes="100vw" width="1378" height="426"></p><h3><strong>4 Advanced Particle Platforms</strong></h3><p>All four of the Biozen particle platforms were individually designed and built by Phenomenex to take advantage of integral levels of performance, ruggedness, and reproducibility for protein characterization applications. Individually, each platform differs in the proprietary processing techniques used to control particle size and morphology.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Advanced_Particle_Platforms_a0959aca03.jpg" alt="Phenomenex: Advanced Particle Platforms" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Advanced_Particle_Platforms_a0959aca03.jpg 245w," sizes="100vw" width="1439" height="868"></p>

Waters Atlantis Premier BEH Z-HILIC Column

Waters Atlantis Premier BEH Z-HILIC Columns provide an increase in polar analyte retention and offer a different selectivity when compared to other HILIC chemistries, both powerful attributes when performing HILIC methods development.

<p><strong>Atlantis Premier BEH Z-HILIC Columns </strong>provide an increase in polar analyte retention and offer a different selectivity when compared to other HILIC chemistries, both powerful attributes when performing HILIC methods development. &nbsp;Built using rugged <strong>ethylene bridged hybrid particles</strong>, these columns are <strong>pH stable from pH 2-10</strong>; the MaxPeak High Performance Surface hardware technology significantly reduces unwanted analyte/surface interactions that can lead to poor peak shape and losses in signal intensity.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Atlantis_Premier_BEH_Z_HILIC_kolony_1_59d95946d7/Waters-Atlantis-Premier-BEH-Z-HILIC-kolony-1.jpg" alt="Waters: Atlantis Premier BEH Z-HILIC column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Atlantis_Premier_BEH_Z_HILIC_kolony_1_59d95946d7/thumbnail_Waters-Atlantis-Premier-BEH-Z-HILIC-kolony-1.jpg 234w," sizes="100vw" width="660" height="440"></p><h4><strong>Specification</strong></h4><ul><li><strong>Chemistry:</strong> Sulfobetaine</li><li><strong>Separation Mode: </strong>Hydrophilic Interaction (HILIC)</li><li><strong>Particle Substrate: </strong>Hybrid</li><li><strong>pH Range Min: </strong>2 pH</li><li><strong>pH Range Max:</strong> 10 pH</li><li><strong>Maximum Pressure:</strong> 18000 psi (1240 Bar)</li><li><strong>Endcapped: </strong>No</li><li><strong>Bonding Technology:</strong> Zwitterion</li><li><strong>Particle Shape:</strong> Spherical</li><li><strong>Particle Size:</strong> 1.7 µm</li><li><strong>Endfitting Type: </strong>Parker-style</li><li><strong>Pore Size: </strong>95 Å</li><li><strong>Format: </strong>Premier Column</li><li><strong>Surface Area:</strong> 270</li><li><strong>System:</strong> UHPLC, UPLC</li><li><strong>Particle Technology: </strong>BEH</li><li><strong>USP Classification:</strong> L122</li><li><strong>Carbon Load: </strong>17 %</li></ul><h3><strong>Atlantis Premier Columns</strong></h3><h4><strong>Next-generation hybrid particle and surface technology for increased polar analyte retention</strong></h4><p>Retaining polar compounds is one of the most challenging chromatographic problems. With the hybrid particle technology in Atlantis Premier BEH C18 AX and the BEH Z-HILIC Columns, those problems are a thing of the past. These reversed-phase, anion-exchanged, mixed-mode, and zwitterionic columns are the next evolution of columns in the Atlantis family, all designed to achieve superior polar compound retention.</p><p>Atlantis Premier BEH C18 AX and the BEH Z-HILIC Columns combine a new and innovative chromatographic particle technology with proprietary MaxPeak High-Performance Surfaces (HPS) Technology to boost retention of polar acidic compounds by 50% while eliminating unwanted analyte-surface interactions.</p><h4><strong>Atlantis Premier Column Characteristics</strong></h4><h5><strong>Atlantis Premier BEH 95 Å Particle Columns</strong></h5><ul><li>Mixed-mode C18 Anion-exchange (AX) Chemistry</li><li>Increase retention of polar acids</li><li>Wider pH range (2–10)</li><li>Batch-to-batch reproducibility</li><li>Mass Spectrometry (MS) compatible</li></ul><h5><strong>Atlantis Premier BEH Z-HILIC Columns</strong></h5><ul><li>Uses sulfobetaine zwitterionic ligand</li><li>Increase retention of strongly polar analytes</li><li>Wider pH range (2–10)</li><li>Batch-to-batch reproducibility</li><li>Mass Spectrometry (MS) compatible</li></ul>

Products focused on LC columns - page 26

Related content

Webinars LabRulezLCMS Week 20/2026

Cerebrospinal Fluid Proteome Reveals Dysregulation of Lysosomal and Axonal Proteins in Neurosyphilis

A Rare Genetic Disorder in the Amish Community Helped Confirm a Key Cellular Mechanism