Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals that have been widely used since the 1940s in industries and consumer goods. They are found in products like water-repellent clothing, stain-resistant fabrics, cosmetics, firefighting foams, and grease-, water-, and oil-resistant items. For instance, PFAS are commonly present in non-stick cookware used in everyday life. Their persistence and long biological half-lives have resulted in measurable levels in nearly all people in developed countries, with associated PFAS human health effects reported worldwide.Evaluating PFAS health risks requires understanding their adverse health effects at real-world exposures, particularly during sensitive life stages, along with their modes of action, toxicokinetics, and dose-response relationships. This knowledge supports risk estimates that guide public health limits, exposure reduction, and environmental cleanup efforts.<h3>Why are PFAS a Health Concern?</h3>PFAS have a chemical structure with a perfluorinated carbon tail that repels both water and oil and an anionic head group that attracts water, making them highly resistant and persistent. As a result, they do not break down and instead accumulate in the bodies of people and animals worldwide through food and repeated exposures. They even bio-magnify through the food web. Growing evidence has raised concerns about the harmful effects of PFAS on human health.In the human body, PFAS bind strongly to proteins due to their polar, hydrophobic nature and have been detected in serum, cord blood, and breast milk. Unlike many other bio-accumulative contaminants, they do not tend to accumulate in fat tissue.<h3>PFAS Testing Techniques</h3>PFAS have a chemical structure with a perfluorinated carbon tail that repels both water and oil and an anionic head group that attracts water, making them highly resistant and persistent. As a result, they do not break down and instead accumulate in the bodies of people and animals worldwide through food and repeated exposures. They even bio-magnify through the food web. Growing evidence has raised concerns about the harmful effects of PFAS on human health.In the human body, PFAS bind strongly to proteins due to their polar, hydrophobic nature and have been detected in serum, cord blood, and breast milk. Unlike many other bio-accumulative contaminants, they do not tend to accumulate in fat tissue.While animal studies show that most PFAS are primarily excreted through urine, renal clearance in humans is much slower, raising significant concerns for PFAS human health. The slow elimination contributes to the long-term effects of PFAS on humans.PFAS have extended half-lives, with perfluorooctanoic acid (PFOA) persisting for approximately 3.5 years and perfluorooctane sulfonic acid (PFOS) for roughly 4.8 years. Some studies also report a range of 2.3 to 3.3 years. These findings highlight serious PFAS health risks, demanding the need for continued monitoring and risk assessment.<h3>Known and Suspected Health Effects of PFAs in Humans</h3><h4>Immunological effects</h4>Epidemiological studies have shown that PFAS exposure is linked to weakened immune responses, including reduced antibody levels after vaccinations such as diphtheria, tetanus, rubella, and mumps, with these effects persisting into adolescence and adulthood.Prenatal and early-life exposure to PFAS has been linked to higher risks of infections such as airway, throat, and gastrointestinal illnesses, as well as conditions like atopic dermatitis. Overall, the evidence on PFAS and human health suggests that exposure to PFAS during infancy and childhood can suppress the immune system, though some effects may differ by sex.<h4>Liver disease and cancer</h4>The liver is a major site for long-chain PFAS accumulation, with experimental studies showing toxic effects such as fat infiltration in liver cells, apoptosis, disrupted fatty acid metabolism, and even tumor development. Animal toxicology and histology studies indicate that PFAS can alter liver metabolism, causing increased bile acid reuptake and lipid buildup. These findings demonstrate the effects of PFAS on liver function and long-term disease risk.<h4>Kidney diseases</h4>PFAS exposure has been consistently linked to higher uric acid levels, a biomarker of increased risk for kidney disease, in both adults and children. The prolonged half-lives of long-chain PFAS are largely due to strong kidney reabsorption. Human studies link legacy PFAS such as PFOA and PFOS exposure to reduced kidney function and chronic kidney disease. PFOA and PFOS health effects can also be seen in the body where these substances tend to accumulate in kidney tissues causing nephrotoxicity.<h4>Reproductive outcomes</h4>Exposure to PFOA has been linked to reduced sperm motility, lower sperm concentration and count, and hormonal changes in young men. PFAS can also cross the placenta and accumulate in breast milk, allowing transfer from mother to child. As a result, young children often have higher serum PFAS levels than their mothers.<h3>How do PFAS enter the Environment and Food Chain?</h3>Human exposure to PFAS occurs through multiple pathways. These may vary from exposure to indoor air and dust to ingestion of contaminated water and food, particularly in areas near industrial sites. Thus, PFAS human health concerns may arise from:<ul><li>Water: PFAS contaminate public and private drinking water sources, rivers, and groundwater near industrial areas, landfills, and waste sites. Firefighting foams (AFFFs) used at airports, military bases, and training facilities are a major contributor, raising concerns about PFAS chemicals health effects on the communities dependent on these resources.</li><li>Soil and Air: They spread through soil and air around hazardous waste sites, manufacturing facilities such as chrome plating, electronics, textiles, paper, and through biosolids used as fertilizers.</li><li>Food: PFAS enter the food chain through contaminated fish, seafood, dairy, meat, crops, and animal products. Food packaging such as grease-resistant paper, fast-food wrappers, and microwave popcorn bags also contribute PFAS to the environment.</li><li>Household and Consumer Products: Everyday items like stain- and water-resistant fabrics, non-stick cookware, cleaning agents, paints, sealants, and certain personal care products (shampoo, dental floss, cosmetics) release PFAS into homes.</li><li>Exposure Pathways: This is an area of growing research, it is currently understood that people are being exposed to PFAS through various means, including drinking contaminated water, eating contaminated food, inhaling polluted air or dust, swallowing soil, using PFAS-containing products, or working in high-risk occupations such as firefighting and chemical manufacturing.</li></ul><h3>Importance of Accurate PFAS Testing</h3>Accurate<a target="_blank" rel="noopener noreferrer" href="https://www.phenomenex.com/industries/pfas"> PFAS testing solutions</a> are essential to measure the presence of environmental chemicals and metabolites in human tissues and fluids. Testing can provide a clearer picture of total internal exposure from all sources and pathways. The wide diversity of PFAS, with varying chemical and physical properties, requires the development of tailored analytical procedures that depend on the sample type and medium.The choice of biological sample depends on the specific PFAS of concern, with serum most often used to measure those with long half-lives, while urine or whole blood may be better for short-lived compounds. PFAS can also be detected in plasma, breast milk, and hair, each providing unique insights into exposure at different life stages. For example, hair can reflect historical exposures, and breast milk testing helps estimate infants intake, which is a significant concern for many communities that have been exposed to these substances.Because PFAS detection limits are 1,000 times lower (ppt) than routine analyses (ppb), strict precautions such as verifying PFAS-free supplies are essential to prevent sample contamination, which can still occur from vendor or manufacturing changes. Extremely low detection limits and regulatory criteria is in the parts per trillion (ppt) range. Hence, field QC sample collection and analysis are crucial in investigating the effects of PFAS on humans.

Health Risks Associated with PFAS Exposure

<div><div>Scientists from UCT Prague contributed to a large-scale study showing that a small change in the so-called anticodon stem of transfer RNAs can expand their decoding capabilities – not only in eukaryotes but also in bacteria.</div><div>Scientists from UCT Prague contributed to a large-scale study showing that even a small change in transfer RNA (tRNA) can fundamentally affect how a cell reads its genetic information. Computer simulations explained why certain tRNAs are able to ignore a signal that under normal circumstances marks the end of protein synthesis. Such tRNAs were previously known in higher organisms. The study, however, mapped how common these unusual tRNAs are in bacteria.The genetic code is a&nbsp;set of rules by which cells translate genetic information during protein synthesis. Transfer RNAs (tRNAs) play a&nbsp;key role in this process, recognising short stretches of mRNA known as codons through their anticodon. In addition to amino acid codons, there is one start codon and several termination (stop) codons. Stop codons are not recognised by transfer RNAs but by specialised enzymes that terminate protein synthesis. Standard tRNAs have five nucleobase pairs in their so-called anticodon stem. Recently, however, it has emerged that some organisms carry functional tRNAs with only four pairs. These "shortened" variants can recognise even codons that, according to the classical rules, should not correspond to them.An international team led by the Biology Centre of the Czech Academy of Sciences in České Budějovice analysed over 42,000&nbsp;bacterial genomes and found that tRNAs with a&nbsp;four-pair stem occur in bacteria surprisingly often. In some cases, these variants likely enable the reading of the stop codon UGA as the amino acid tryptophan, a&nbsp;phenomenon previously associated mainly with unicellular eukaryotes.The <a target="_blank" rel="noopener noreferrer" href="https://kolar.vscht.cz/">Kolář group</a> at the Department of Physical Chemistry, UCT Prague, focused on the question of why a&nbsp;four-pair stem alters the decoding properties of tRNA. To address this, they employed atomistic molecular dynamics simulations, which make it possible to track the movement of every atom in a&nbsp;tRNA molecule over time.Jakub Žváček, a&nbsp;student on the Master's&nbsp;programme in Data Engineering in Chemistry, prepared a&nbsp;total of nine variants derived from the tryptophan tRNA of the bacterium Escherichia coli: the wild type with a&nbsp;five-pair stem, six mutants with a&nbsp;disrupted top base pair, and two previously described variants that promote reading of the stop codon UGA (the G24A&nbsp;and A9C&nbsp;mutations). The simulation results showed that disrupting the top base pair does not cause the overall three-dimensional structure of the tRNA to collapse. It remains stabilised by stacking interactions of neighbouring bases and non-canonical hydrogen bonds. The key finding, however, concerns a&nbsp;region at the interface of the D-arm and the stem – kind of hinge within the tRNA. In some mutants, the simulations revealed destabilisation of this region and increased flexibility of the anticodon stem, reminiscent of the behaviour of known mutations that promote stop codon readthrough. The simulations thus provided a&nbsp;structural explanation for the experimental observations and helped formulate predictions about which nucleotide combinations in the disrupted pair are functionally relevant.The study proposed an extension of the so-called superwobble hypothesis to include non-canonical C:A&nbsp;pairing at the third codon position. If this hypothesis is confirmed for other types of tRNA as well, it will have profound implications for our understanding of how the genetic code — shared by all known organisms — has been shaped by evolution.The results were published in the <a target="_blank" rel="noopener noreferrer" href="https://academic.oup.com/nar/article/54/7/gkag327/8659125">Nucleic Acids Research</a> (2026, 54, gkag327).</div><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/VSCHT_Praha_Pocitacove_simulace_osvetlily_jak_neobvykle_t_RNA_meni_pravidla_cteni_genetickeho_kodu_f6de6700a0.jpg" alt="VŠCHT Prague: Computer simulations shed light on how unusual tRNAs change the rules of reading the genetic code: Molecular architecture of the transfer RNA with the 5th anticodon-stem base pair labelled. This base pair affects the decoding ability of the tRNA anticodon." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_VSCHT_Praha_Pocitacove_simulace_osvetlily_jak_neobvykle_t_RNA_meni_pravidla_cteni_genetickeho_kodu_f6de6700a0.jpg 245w," sizes="100vw" width="759" height="268"><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/VSCHT_Praha_Pocitacove_simulace_osvetlily_jak_neobvykle_t_RNA_meni_pravidla_cteni_genetickeho_kodu_2_c4296b9015.jpg" alt="VŠCHT Prague: Computer simulations shed light on how unusual tRNAs change the rules of reading the genetic code: Analysis of anticodon stem flexibility showed that the mutation of the 5th nucleobase pair (C27A), which enables stop-codon readthrough, loosens the anticodon stem in a manner similar to the previously known Hirsh mutation G24A. Conversely, the C27U mutation does not loosen the stem, which correlates with the absence of this mutation in the genomes of bacteria containing tRNAs with 4bp stems." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_VSCHT_Praha_Pocitacove_simulace_osvetlily_jak_neobvykle_t_RNA_meni_pravidla_cteni_genetickeho_kodu_2_c4296b9015.jpg 245w," sizes="100vw" width="759" height="196"><blockquote><h4>Original article&nbsp;</h4><h4><a target="_blank" rel="noopener noreferrer" href="https://academic.oup.com/nar/article/54/7/gkag327/8659125?login=false">Frequent occurrence and predicted functions of tRNAs with 4-base-pair anticodon stems in bacteria: extended superwobble hypothesis</a></h4>Fadel Fakih, Satish Nandipati, Ambar Kachale, Jiří Heller, Jakub Žváček, Filip Brázdovič, Nawal Al-Chamy, Pragya Tripathi, Zdeněk Paris, Leoš Shivaya Valášek, Michal H Kolář, Vyacheslav Yurchenko, Marek Eliáš, Eugene V Koonin, Julius Lukeš, Anzhelika ButenkoNucleic Acids Research, Volume 54, Issue 7, 24 April 2026, gkag327<a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1093/nar/gkag327">https://doi.org/10.1093/nar/gkag327</a><h6>licenced by <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/">CC-BY 4.0</a></h6></blockquote><h4>Abstract</h4>Recently, a tRNATrpCCA with a 4-base-pair (bp) anticodon stem (AS) was shown to efficiently recognize a near-cognate UGA codon in unicellular eukaryotes, such as some trypanosomatids and ciliates, thereby representing a novel codon reassignment mechanism. To determine whether this mechanism also evolved in bacteria, we analysed a dataset of 42 109 genomes, including previously reported cases of stop-to-tryptophan UGA reassignment and a newly identified instance in the phylum Patescibacteriota. We show that the 4-bp AS tRNATrp species are present across diverse bacteria and in some cases likely function in decoding in-frame UGA codons. Most notable is the endosymbiotic bacterium Candidatus Zinderia insecticola, which contains only the near-cognate 4-bp AS tRNATrpCCA, while lacking both canonical 5-bp AS tRNATrpCCA and a tRNATrpUCA. The secondary structure of this 4-bp AS tRNATrp resembles that of its eukaryotic counterpart, suggesting convergent evolution. We experimentally confirmed the UGA readthrough capacity of 4-bp AS tRNATrpCCA in Escherichia coli, and applied molecular dynamics simulations to suggest the underlying mechanism. Furthermore, we tested several predictions based on accepting the previously excluded possibility of C:A base pairing at the 3rd codon position. These findings provide new insights into the structural diversity of transfer RNAs (tRNAs) and expand our understanding of genetic code evolution.</div>

Computer simulations shed light on how unusual tRNAs change the rules of reading the genetic code

Clarity 10.2 expands instrument control capabilities with new control modules and updates the MS extension to help you work more efficiently.<h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/999">Clarity</a> 10.2 highlights</h4><ul><li>New and updated control modules</li><li>Improved MS data import and export</li><li>Obsolete hardware support ended</li></ul><h4>Instrument control modules</h4>Clarity 10.2 introduces new instrument control modules from Annuo (AS-3117, FAS-3823) and updated instrument controls form Sykam and Ecom.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Instrument_control_modules_5de26782b0.jpg" alt="DataApex: Instrument control modules" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Instrument_control_modules_5de26782b0.jpg 228w," sizes="100vw" width="380" height="260"><h4>MS data import/export improvements</h4>Clarity improves MS data exchange, especially for *.cdf files. MS instruments now support export and import of multiple spectral data and non-spectral signal data in the same CDF file. Import also better handles uniform sampling information, m/z Step values, scale factors, and file names with non-ASCII characters. Exporting individual chromatogram signals from MS instruments is now available through a separate Export Chromatogram dialog.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_MS_data_import_export_improvements_a7967a4020.jpg" alt="DataApex: MS data import-export improvements" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_MS_data_import_export_improvements_a7967a4020.jpg 228w," sizes="100vw" width="378" height="259"><h4>Obsolete hardware support terminated</h4>Due to changes in Windows driver security requirements, this update discontinues support for obsolete hardware, including INT7, INT9, U-PAD, U-PAD2, and CB20.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Obsolete_hardware_support_terminated_24d9329419.jpg" alt="DataApex: Obsolete hardware support terminated" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Obsolete_hardware_support_terminated_24d9329419.jpg 228w," sizes="100vw" width="378" height="259"><blockquote>Explore the complete list of all changes, fixes, and additions in version 10.2.👉<a target="_blank" rel="noopener noreferrer" href="https://www.dataapex.com/version_history?product=1">See the complete changelog&nbsp;</a></blockquote>

Clarity Chromatography Software 10.2 released!

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Since 1991 DataApex develops and manufactures chromatography data stations. DataApex is constantly striving to provide users with efficient and up-to-date tools for chromatography data processing.

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The University of Chemistry and Technology, Prague is a natural centre of first-rate study and research in the area of chemistry in Czechia and is one of the country's largest educational and research institutions focused on technical chemistry, chemical and biochemical technologies, material and chemical engineering, food chemistry, and environmental studies.

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Phenomenex is a global technology leader committed to developing novel analytical chemistry solutions that solve the separation and purification challenges of researchers in industrial, government and academic laboratories.

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Phenomenex Biozen WidePore C4 LC columns

Biozen WidePore C4 column contains skillfully manufactured large pore core shell particles that provide narrower, taller peaks in conjunction with higher resolution.

Impurity profiling and characterization of intact biologic fragments is a challenging undertaking because of the need to identify very small differences between variants. Both Biozen Intact columns contain skillfully manufactured large pore core shell particles that provide narrower, taller peaks in conjunction with higher resolution between the target HC/LC, Fc/Fab, or isoforms.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Biozen_Widepore_C4_HPLC_Column_56dfa53fcb.webp" alt="Phenomenex: Biozen Widepore C4 HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Biozen_Widepore_C4_HPLC_Column_56dfa53fcb.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Separation Mode: Reversed Phase</li><li>Particle size: 2.6</li><li>Recommended Use: Optimal particle and pore size morphology for high reproducibility and resolution for intact and subunit analysis</li></ul><h3>Phenomenex Biozen Biologics LC Columns</h3>With a new titanium BioTi™ biocompatible hardware to minimize priming, four particle platforms for optimal versatility and nine particle chemistries to maximize selectivity and sensitivity, Biozen UHPLC/HPLC columns for protein analysis are seamlessly designed to bring peace of mind to your analysis of biologics through:<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>Biocompatible Flow Path with BioTi™ Hardware</h3>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!<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"><h3>4 Advanced Particle Platforms</h3>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.<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">

KNAUER Eurospher II 100 C4 (U)HPLC Columns (USP L26)

C4 stationary phases (USP L26) are often used in reversed phase mode for different application areas. 

C4 columns for Reversed Phase in HPLC and UHPLC (USP L26)C4 stationary phases (USP L26) are often used in reversed phase mode for different application areas.&nbsp;They are suitable for:<ul><li>Hydrophobic Interaction Chromatography (HIC mode)</li><li>Analysis of biomolecules like proteins and peptides</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_C4_3f3adfbdb4.webp" alt="KNAUER: C4" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_C4_3f3adfbdb4.webp 78w," sizes="100vw" width="200" height="400"><h3>KNAUER (U)HPLC Columns</h3>Widest range of HPLC and UHPLC columns for all separation modes and applications.<ul><li>Safe Investment: Robust and reliable columns for attractive price&nbsp;</li><li>Separation Mode: Reversed Phase, HILIC, Normale</li><li>Simplicity: Easy purchase via our online store with fast delivery</li><li>Application: All-rounder for research or highly specialised for high-throughput analysis? We have the best column for your requirements.</li><li>Flexibility: Wide selection of column and particle sizes, for (U)HPLC applications up to 1000 bar</li></ul>KNAUER offers the perfect column for any small molecule separation. No matter which separation mode, molecule and the mobile phase, we offer a suitable (U)HPLC stationary phase. Choose from a wide range of modifications, particle sizes and column dimensions to suit your application. To elongate the lifetime of your column, you can choose to use a suitable precolumn.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_KNAUER_U_HPLC_C8_and_C8_A_Columns_083c60f401.webp" alt="KNAUER: KNAUER (U)HPLC Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_KNAUER_U_HPLC_C8_and_C8_A_Columns_083c60f401.webp 182w," sizes="100vw" width="787" height="674">

KNAUER Eurosil Bioselect 300 C4 HPLC Columns (USP L26)

Eurosil Bioselect C4 has been specifically developed for the determination and purification of peptides, proteins, and oligonucleotides up to a molecular weight of approximately 100 kDa. 

Analytical wide pore phase for the determination of biomolecules bigger than 20 kDaEurosil Bioselect C4 has been specifically developed for the determination and purification of peptides, proteins, and oligonucleotides up to a molecular weight of approximately 100 kDa. The optimized manufacturing process guarantees excellent batch–to-batch reproducibility. The Eurosil Bioselect sorbent is the first choice for Biochromatography with silica material.<h5>Properties</h5><ul><li>Ultra pure, spherical wide pore HPLC phase based on wide pore silica gel</li><li>Unpolar, monomeric C4 modification, endcapped</li><li>2 % carbon content (conventional endcapping)</li><li>Separation mechanism: hydrophobic and hydrophilic interaction</li></ul><figure class="image"><img style="aspect-ratio:200/400;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_C4_3f3adfbdb4.webp" alt="KNAUER: C4" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_C4_3f3adfbdb4.webp 78w," sizes="100vw" width="200" height="400"></figure><h5>Recommended application areas</h5><ul><li>Hydrophilic biomolecules and especially peptides larger than 10 000- 20 000 Da</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Eurosil_Bioselect_Phases_98acc32d0e.jpg" alt="KNAUER: Eurosil Bioselect - Phases and recommended sizes of molecules" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Eurosil_Bioselect_Phases_98acc32d0e.jpg 245w," sizes="100vw" width="1385" height="778"><h3>KNAUER Wide pore HPLC columns</h3>For enhanced resolution, capacity and recovery of proteins and other biomolecules<ul><li>Material: Silica or polymer particles</li><li>Separation Ranges: 2–100 kDa</li><li>Column Brands: Eurosil Bioselect or AppliChrom®</li><li>Particle sizes: 3–10 µm</li><li>Pore Sizes: 300 or 100–1000 Å</li><li>Specific surface: 90 ± 5 m2/g</li><li>Pore volume: 0.8 ml/g</li><li>Density: 450 g/l</li><li>Applications: Peptides exceeding approximately 50 amino acids and oligonucleotides greater than 25 residues</li><li>Customize: Bioanalysis requires a lot of flexibility in the pore size, the pH range, the temperatures and the solvents used. To achieve this, we cross phase limits.</li></ul><h4>Characteristics&nbsp;</h4><ul><li>Eurosil Bioselect columns are available in 4 modifications, useful for a wide range of separation tasks involving large molecules up to 100 000 Da.</li><li>Strict manufacturing procedures ensure a very narrow pore size distribution.</li><li>Interfering anions or heavy metal ions on the silica surface are not present in Eurosil Bioselect columns because only ultra pure silica gel and high quality chemical modifications are employed.</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Eurosil_Bioselect_85cfc2d201.jpg" alt="KNAUER: Eurosil Bioselect" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Eurosil_Bioselect_85cfc2d201.jpg 222w," sizes="100vw" width="1114" height="782"><h4>Separation mechanism of Eurosil Bioselect</h4>To separate larger molecules, they need to freely access the interior of the pores of the packing material. Therefore, the analytes’ diameter must be smaller than the average pore diameter.&nbsp;For higher molecular weight solutes, the use of lower pore size materials (60-120 Å) as typically used for the analysis of small molecules may result restricted diffusion in the material´s pores and therewith reduced column efficiency.&nbsp;<h4>Modifications</h4>The recommended modification of Eurosil Bioselect depends on the molecular weight of the analytes.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Eurosil_Bioselect_chemical_modifications_1fd5d87f7b.jpg" alt="KNAUER: Eurosil Bioselect - chemical modifications" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Eurosil_Bioselect_chemical_modifications_1fd5d87f7b.jpg 245w," sizes="100vw" width="955" height="505"> &nbsp;

KNAUER Eurospher II 100 C4 Prep HPLC Columns (USP L26)

C4 columns for Reversed Phase in HPLC and UHPLC (USP L26)C4 stationary phases (USP L26) are often used in reversed phase mode for different application areas.&nbsp;They are suitable for:<ul><li>Hydrophobic Interaction Chromatography (HIC mode)</li><li>Analysis of biomolecules like proteins and peptides</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_C4_3f3adfbdb4.webp" alt="KNAUER: C4" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_C4_3f3adfbdb4.webp 78w," sizes="100vw" width="200" height="400"><h3>KNAUER Preparative HPLC Columns</h3>The right choice for all dimensions from semi-prep to batch chromatography to SMB.<ul><li>Modifications: Reversed Phase, HILIC, Normale Phase</li><li>Max. Pressure: 400–600 bar</li><li>Column Inner Diameter (ID): 16–50 mm in our shop, more on request</li><li>Column Brands: Eurospher, Eurospher II</li><li>Safe Investment: Robustness and durability based on superior technology</li><li>Application: Easy upscaling, as all materials are available from ultra high performance to preparative scale HPLC. You can also use our upscaling calculator.</li><li>Customizable: Standard flanged hardware &amp; dAX hardware with static or dynamic axial compression available</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Preparative_HPLC_Columns_31bc2477c3.webp" alt="KNAUER: KNAUER Preparative HPLC Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Preparative_HPLC_Columns_31bc2477c3.webp 221w," sizes="100vw" width="1024" height="724"><h5>Preparative HPLC columns can be offered with two different hardware types:</h5><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>

Waters XBridge BEH Protein C4 HPLC Columns

Waters XBridge Protein BEH C4 column is QC tested and optimized to separate proteins based on size, hydrophobicity and isoelectric point. 

The XBridge Protein BEH C4 column is QC tested and optimized to separate proteins based on size, hydrophobicity and isoelectric point. If you compare to traditional C18 phases, the C4 ligand is less retentive and will minimize protein carryover, increase protein recovery, and improve peak capacity.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_X_Bridge_BEH_Protein_C4_HPLC_Columns_0aa4f56918.jpeg" alt="Waters: XBridge BEH Protein C4 HPLC Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_X_Bridge_BEH_Protein_C4_HPLC_Columns_0aa4f56918.jpeg 234w," sizes="100vw" width="660" height="440"><h4>Specifications</h4><ul><li>Chemistry: C4</li><li>Separation Mode: Reversed Phase</li><li>Particle Substrate: Hybrid</li><li>pH Range Min: 2 pH</li><li>pH Range Max: 10 pH</li><li>Maximum Pressure: 6000 psi (415 Bar)</li><li>Endcapped: No</li><li>Silanol Activity: Low</li><li>Molecular Weight Range Max: 150000</li><li>Particle Shape: Spherical</li><li>System: HPLC</li><li>Particle Technology: BEH</li><li>USP Classification: L26</li><li>Carbon Load: 8 %</li></ul><h3>XBridge Columns</h3><h4>Particle stability and performance for methods development</h4>Withstanding extreme operating conditions like high pH and high temperatures is essential for methods development. XBridge HPLC and UHPLC Columns utilize Ethylene Bridged Hybrid (BEH) Particle Technology and are built to withstand high pH, high temperatures, and other extreme operating conditions like volatile eluents, for a wide range of small molecule and biomolecule LC-MS analysis.XBridge HPLC and UHPLC Columns are available in a broad range of sorbent particles and sizes: XBridge eXtended Perfomance (XP) 2.5 µm Columns for rapid analytical UHPLC separations; 3.5 and 5 µm HPLC columns for reliable analytical method development; and 5 and 10 µm optimum bed density (OBD) preparative columns for purification chromatography.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_X_Bridge_Columns_b0b55de501/Waters-XBridge-Columns.jpg" alt="Waters: XBridge Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_X_Bridge_Columns_b0b55de501/thumbnail_Waters-XBridge-Columns.jpg 203w," sizes="100vw" width="900" height="691">

Waters Symmetry C4 HPLC Columns

With Waters Symmetry C4 Column, you get the sharpest peaks for biomolecules and more peak capacity for complex tryptic maps. 

Primarily supports legacy methods. Symmetry columns give you confidence in the long-term compliance of your HPLC methods. No need to compromise on peak shape, selectivity, column-to-column and batch-to-batch reproducibility, or other critical performance characteristics. Available in a variety of particle sizes, chemistries and dimensions.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Atlantis_d_C18_HPLC_Columns_d7a741df9f.jpg" alt="Waters: Symmetry C4 HPLC Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Atlantis_d_C18_HPLC_Columns_d7a741df9f.jpg 234w," sizes="100vw" width="660" height="440"><h4>Specifications</h4><ul><li>Chemistry: C4</li><li>Separation Mode: Reversed Phase</li><li>Particle Substrate: Silica</li><li>pH Range Min: 2 pH</li><li>pH Range Max: 8 pH</li><li>Maximum Pressure: 6000 psi (415 Bar)</li><li>Endcapped: Yes</li><li>Silanol Activity: Low</li><li>Particle Shape: Spherical</li><li>Pore Size: 300 Å</li><li>System: HPLC</li><li>USP Classification: L26</li><li>Carbon Load: 2.8 %</li><li>Application: Protein</li></ul><h3>Symmetry HPLC Columns</h3><h4>Silica-based columns that exceed HPLC column performance expectations</h4>Reproducible HPLC columns are essential when developing analytical methods for pharmaceutical and biopharmaceutical products. Achieving the same chromatographic results over the lifetime of a new drug product is critical, and no other silica-based LC column brand can match the column-to-column and batch-to-batch reproducibility of the Symmetry family.Available in column and guard formats, Symmetry Columns are manufactured using high purity silica and tightly controlled manufacturing processes to ensure that you receive a column that exceeds the standards for HPLC column performance.<h4>Overview</h4><ul><li>Deliver maximum reproducibility batch-to-batch and column-to-column</li><li>Provide superior peak shape</li><li>Achieve high recoveries of peptides and proteins</li><li>Manufactured using high purity silica and tightly controlled manufacturing processes</li><li>Recommended Use: For rugged and reproducible HPLC column performance.</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Symmetry_Columns_a2367d8095/Waters-Symmetry-Columns.jpg" alt="Waters: Symmetry Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Symmetry_Columns_a2367d8095/thumbnail_Waters-Symmetry-Columns.jpg 223w," sizes="100vw" width="700" height="490">

Waters ACQUITY UPLC Protein BEH C4 Column

The Waters ACQUITY UPLC Protein BEH C4 column is QC tested and optimized to separate proteins based on size, hydrophobicity and isoelectric point. 

The ACQUITY UPLC Protein BEH C4 column is QC tested and optimized to separate proteins based on size, hydrophobicity and isoelectric point. If you compare to traditional C18 phases, the C4 ligand is less retentive and will minimize protein carryover, increase protein recovery, and improve peak capacity.<h5>Specifications</h5><ul><li>Chemistry: C4</li><li>Separation Mode: Reversed Phase</li><li>Particle Substrate: Hybrid</li><li>pH Range Min: 2 pH</li><li>pH Range Max: 10 pH</li><li>Endcapped: No</li><li>Silanol Activity: Low</li><li>Particle Shape: Spherical</li><li>Pore Size: 300 Å</li><li>System: UHPLC, UPLC</li><li>Particle Technology: BEH</li><li>USP Classification: L26</li><li>Carbon Load: 8 %</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_ACQUITY_UPLC_BEH_C8_Column_9c78ca994d.jpg" alt="Waters: Kolona ACQUITY UPLC BEH C8" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_ACQUITY_UPLC_BEH_C8_Column_9c78ca994d.jpg 234w," sizes="100vw" width="660" height="440"><h3>ACQUITY UPLC Columns</h3><h5>Increase speed, sensitivity, and resolution, without compromising data integrity</h5>Increasing sample throughput, achieving unmatched resolution, and improving analyte sensitivity are priorities for your separation goals. With Waters ACQUITY UPLC Columns, you can meet all your method requirements and substantially reduce your analysis time and cost-per-sample.Waters ACQUITY UPLC Columns’ sub-2-µm particle chemistries enable chromatographers to harness the separation efficiency improvements at increased flow rates of ultra-performance liquid chromatography (UPLC) technology, thereby improving analyte resolution and sensitivity as well as business productivity and profitability. &nbsp;<h4>Overview</h4><ul><li>Best-in-class column efficiency for superior separation speed, sensitivity, and resolution</li><li>8 UPLC particles of various substrate technologies, including Ethylene Bridged Hybrid (BEH), High Strength Silica (HSS), and Charged Surface Hybrid (CSH)</li><li>22 stationary phases, including C18, Phenyl-Hexyl, C8, Embedded-Polar, C4, HILIC, Amide, Diol, Cyano, and PFP</li><li>7 application-specific UPLC Column chemistries for SEC, proteins, peptides, oligonucleotides, glycan, and amino acid analysis</li><li>More than 50 different column dimensions and configurations, with internal column diameters ranging from 1.0–4.6 mm and column lengths ranging from 30–300 mm</li><li>Prolonged column lifetimes with optional VanGuard Cartridges specifically designed using ACQUITY stationary phases</li><li>Recommended Use: For improved speed, sensitivity, and resolution in methods development.</li></ul><h4>Particle technology</h4><h5>BEH - Ethylene Bridged Hybrid Particle Technology</h5>ACQUITY UPLC BEH 1.7 µm fully porous columns provide superior analyte peak shape, efficiency, and chemical stability to any separation. ACQUITY UPLC BEH Columns are available in both reversed-phase and HILIC separation modes, with chemistries that provide selectivities for a wide range of compounds. With the ruggedness to operate at extreme pH conditions, ACQUITY UPLC BEH Columns enable the separation scientist to use a wide pH range to influence retention, selectivity, and sensitivity for ionizable compounds.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_BEH_technology_c07876b8a3.jpg" alt="Waters: BEH particle technology" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_BEH_technology_c07876b8a3.jpg 170w," sizes="100vw" width="1050" height="964"><h5>CSH - Charged Surface Hybrid Particle Technology</h5>ACQUITY UPLC CSH™ 1.7 µm fully porous columns provide superior peak shape for basic analytes when using low ionic strength acidic mobile phases (e.g. 0.1% formic acid). With CSH Technology, the controlled low-level positive surface charge provides exceptional peak shape for basic analytes which can be achieved without the use of ion pairing reagents. Typically reversed-phase bonded phases have poor peak shape for basic compounds in formic acid even at analytical mass loads. Built on the rugged Ethylene Bridged Hybrid (BEH) particle, ACQUITY UPLC CSH phases can withstand the toughest operating conditions.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_CSH_technology_ff4ddc1708.jpg" alt="Waters: CSH particle technology" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_CSH_technology_ff4ddc1708.jpg 169w," sizes="100vw" width="1049" height="968"><h5>HSS - High Strength Silica (HSS) Particle Technology</h5>ACQUITY UPLC HSS 1.8 µm fully porous columns provide expected silica particle-like performance to the UPLC family. The HSS particles’ high surface area, and lower pore volume provide increased retentivity over the hybrid particles. This robust particle technology is available in five uniquely different bonded phases, which truly maximize the selectivity space. The wide array of bonded phases associated with ACQUITY UPLC HSS Columns enable traditional hydrophobic reversed-phase interactions along with dipole-dipole interactions, aromatic interactions, and hydrogen bonding interactions.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_HSS_technology_b12d3ddfab.jpg" alt="Waters: HSS particle technology" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_HSS_technology_b12d3ddfab.jpg 162w," sizes="100vw" width="975" height="936"><h4>Get superior peak shape for basic analytes</h4>Reversed-phase bonded phases typically have poor peak shape for basic compounds when using formic acid, even at analytical mass loads. However, ACQUITY UPLC CSH Columns are the exception. These rugged UPLC Columns provide superior peak shape for basic analytes with formic acid or other low ionic-strength, acidic mobile phases. The controlled, low-level, positive surface charge bonded to the ethylene-bridged hybrid (BEH) particles provides excellent peak shape for bases—without the need for the use of ion-pairing reagents.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_Analysis_of_ziprasidone_peroxide_degradation_on_an_ACQUITY_UPLC_CSH_C18_Column_56909f1dc8.jpeg" alt="Waters: Analysis of ziprasidone peroxide degradation on an ACQUITY UPLC CSH C18 Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_Analysis_of_ziprasidone_peroxide_degradation_on_an_ACQUITY_UPLC_CSH_C18_Column_56909f1dc8.jpeg 245w," sizes="100vw" width="1024" height="485"><h4>The ruggedness you want, the repeatability you need</h4>ACQUITY UPLC BEH 1.7 µm fully porous columns provide superior analyte peak shape, efficiency, and chemical stability to any separation. ACQUITY UPLC BEH Columns are available in both reversed-phase and HILIC separation modes, with chemistries that provide selectivities for a wide range of compounds. With the ruggedness to operate at extreme pH conditions, ACQUITY UPLC BEH Columns enable separation scientists to use a wide pH range to influence retention, selectivity, and sensitivity for ionizable compounds.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_ACQUITY_UPLC_BEH_Columns_can_be_used_at_the_extremes_of_mobile_phase_p_H_1_12_to_enhance_retention_and_specificity_for_complex_samples_that_include_mixtures_of_acidic_basic_and_neutral_analytes_5104d9a155.jpeg" alt="Waters: ACQUITY UPLC BEH Columns can be used at the extremes of mobile phase pH (1-12) to enhance retention and specificity for complex samples that include mixtures of acidic, basic, and neutral analytes." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_ACQUITY_UPLC_BEH_Columns_can_be_used_at_the_extremes_of_mobile_phase_p_H_1_12_to_enhance_retention_and_specificity_for_complex_samples_that_include_mixtures_of_acidic_basic_and_neutral_analytes_5104d9a155.jpeg 195w," sizes="100vw" width="1024" height="823"><h4>Achieve flexibility in method development</h4>Chromatographic laboratories need to quickly and easily develop robust methods that are compatible with all modern chromatographic detection modes and transferrable to laboratories and sites that operate different LC system platforms. With ACQUITY UPLC CSH and XSelect Columns, method development scientists in all application areas can achieve a wide range of selectivities without compromising performance across attributes, including superior peak shape for basic compounds, low column bleeds, excellent batch-to-batch reproducibility, and high efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_CSH_Columns_offer_a_wide_range_of_selectivity_differences_large_S_values_733305abf8.jpeg" alt="Waters: CSH Columns offer a wide range of selectivity differences (large S-values)." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_CSH_Columns_offer_a_wide_range_of_selectivity_differences_large_S_values_733305abf8.jpeg 136w," sizes="100vw" width="1024" height="1173">

Thermo Scientific Hypersil GOLD C4 HPLC Columns

For very hydrophobic analytes, achieve faster separations with excellent peak shapes using Thermo Scientific™ Hypersil GOLD™ C4 HPLC columns. 

For very hydrophobic analytes, achieve faster separations with excellent peak shapes using Thermo Scientific™ Hypersil GOLD™ C4 HPLC columns. Featuring a lower hydrophobicity than C18 or C8 columns, Hypersil GOLD C4 columns provide outstanding sensitivity and high efficiency.<h5>Similar selectivity, less retention than C18 or C8 columns</h5><ul><li>Successful retention and separation of very hydrophobic analytes with this short alkyl chain length, low hydrophobicity column</li><li>Ideal for analysis of hydrophobic polypeptides and proteins</li></ul><h5>Superior performance</h5><ul><li>Highly symmetrical peak shapes</li><li>1.9 μm particle size columns improve speed and efficiency</li></ul><h4>Specifications</h4><ul><li>Endcapped: Yes</li><li>Max. Pressure: 18130 psi (1250 bar)</li><li>Packing Material: Spherical, Fully Porous, Ultrapure Silica</li><li>Stationary Phase: C4</li><li>Surface Area: 220 m²/g</li><li>Temperature: 60°C</li><li>USP Type: L26</li><li>Carbon Load: 5%</li><li>Phase: Reversed Phase</li><li>Pore Size: 175 Å</li><li>pH: 2 to 8</li></ul><h4>About the Hypersil GOLD Family of HPLC Columns</h4>Meet the challenges of modern chromatography with state-of-the-art columns that provide outstanding performance and consistent separations. Twelve different column chemistries are available so you can optimize separations and maximize productivity. Get outstanding peak shapes in reversed phase, ion exchange, HILIC, or normal phase chromatography.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_Hypersil_GOLD_Columns_41d5984b62.jpg" alt="Thermo Fisher Scientific: Hypersil GOLD Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_Hypersil_GOLD_Columns_41d5984b62.jpg 150w," sizes="100vw" width="747" height="775"><ul><li>Excellent peak symmetry<ul><li>Hypersil GOLD columns produce highly symmetrical peaks, which facilitate the detection of low-level impurities that elute immediately after the main component. When there is even minor tailing, small impurity peaks can elute on the shoulder of the main peak, complicating the integration process.</li></ul></li><li>Narrow peaks for outstanding efficiency</li><li>Enhanced sensitivity and improved resolution</li><li>Exceptional reproducibility for reliable chromatography, column after column</li><li>Solutions for high-throughput screening</li><li>1.9, 3, and 5 μm particle sizes for all your separation needs</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_Hypersil_GOLD_Peak_symmetry_641b946673.jpg" alt="Thermo Fisher Scientific: Hypersil GOLD Columns: Peak symmetry" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_Hypersil_GOLD_Peak_symmetry_641b946673.jpg 149w," sizes="100vw" width="880" height="925">

Thermo Scientific Accucore 150-C4 HPLC Columns

Offer lower hydrophobic retention, ideal for optimal retention of proteins and larger peptides with Thermo Scientific™ Accucore™ 150-C4 LC Columns. 

Offer lower hydrophobic retention, ideal for optimal retention of proteins and larger peptides with Thermo Scientific™ Accucore™ 150-C4 LC Columns. Based on Core Enhanced Technology, Thermo Scientific Accucore columns provide fast, high-resolution biomolecule separations without the elevated backpressures required by sub-2μm particles.<ul><li>150Å pore size solid core particles for fast biomoleucule separations</li><li>Superb resolution at low backpressures</li><li>Exceptionally rugged columns</li><li>Significantly lower hydrophobic retention than C18</li><li>Ideal for optimal retention of proteins and larger peptides</li></ul><h4>Specifications</h4><ul><li>Endcapped: Yes</li><li>Max. Pressure: 14500 psi (1000 bar)</li><li>Packing Material: Spherical, Solid Core, Ultrapure Silica</li><li>Stationary Phase: C4</li><li>Surface Area: 80 m²/g</li><li>Temperature: 60°C</li><li>USP Type: L26</li><li>Carbon load: 2%</li><li>Phase: Reversed phase</li><li>Pore Size: 150 Å</li><li>pH: 2 to 9</li></ul><h3>Accucore HPLC and UHPLC Columns</h3><h4>Resolve impurities without feeling the pressure</h4>Thermo Scientific Accucore HPLC and UHPLC columns provide ultimate core performance, allowing you to maximize your investment. Solid-core particles deliver UHPLC performance, with superb resolution delivering back-pressure compatible with HPLC instrumentation. A wide range of phases help meet all your separation needs, while our columns are exceptionally rugged and easy to use.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_Accucore_columns_26e0ffa8d5.jpg" alt="Thermo Fisher Scientific: Accucore columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_Accucore_columns_26e0ffa8d5.jpg 156w," sizes="100vw" width="708" height="711">

Products from category C4 HPLC columns focused on Consumables - page 1

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