EU Regulation 396/2005: Pesticide Residue Testing and the Critical Role of QuEChERS Evaporation in Food Safety

<div><div><p><strong>Researchers led by </strong><a target="_blank" rel="noopener noreferrer" href="https://kudova.group.uochb.cz/en"><strong>Eva Kudová</strong></a><strong> from IOCB Prague and Jitka Viktorová from UCT Prague have identified new androstane-based steroid derivatives that can significantly improve the effectiveness of existing antibiotics against multidrug-resistant </strong><i><strong>Staphylococcus aureus</strong></i><strong>.</strong></p></div></div><div><p>The team screened dozens of natural steroidal hormones and synthetic derivatives to see whether they could block bacterial efflux pumps – mechanisms that bacteria use to eject antibiotics and survive treatment. Two compounds emerged as particularly promising: they inhibited efflux pumps and lowered the effective doses of antibiotics such as ciprofloxacin and erythromycin.</p><p>Further analysis showed that one of the compounds also suppressed genes linked to bacterial virulence. Another key finding is that the most active molecules are non-toxic to human immune cells and showed no detectable endocrine activity, suggesting a favorable safety profile.</p><p>These findings support the idea that rationally designed steroid-based molecules could act as antibiotic adjuvants, helping existing drugs overcome bacterial resistance.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/IOCB_Prague_Steroidal_hormones_and_neurosteroids_novel_therapeutic_strategies_in_bacterial_infections_8e5d2a7b48.jpg" alt="IOCB Prague: Steroidal hormones and neurosteroids – novel therapeutic strategies in bacterial infections" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_IOCB_Prague_Steroidal_hormones_and_neurosteroids_novel_therapeutic_strategies_in_bacterial_infections_8e5d2a7b48.jpg 222w," sizes="100vw" width="1258" height="886"></p><blockquote><h4><strong>Original Article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0223523426001613?via%3Dihub"><strong>Steroidal hormones and neurosteroids - novel therapeutic strategies in bacterial infections: Design, synthesis, and biological evaluation</strong></a></h4><p>Daniela Brdová, Bára Křížkovská, Jan Špaček, Zdeněk Míchal, Eva Jablonská, Ondřej Strnad, Hana Chodounská, Eszter Szánti-Pintér, Marina Morozovová, Václav Hanžl, Jan Tkadlec, Martijn Riool, Jan Lipov, Jitka Viktorová, Eva Kudová&nbsp;</p><p><i><strong>Eur. J. Med. Chem., 2026, 308, 118716</strong></i></p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1016/j.ejmech.2026.118716">https://doi.org/10.1016/j.ejmech.2026.118716</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><h4><strong>Abstract</strong></h4><p>The global rise of antibiotic resistance necessitates novel therapeutic strategies for infectious diseases. Inhibition of bacterial efflux pumps, which contribute to multidrug resistance, represents a promising approach to restore or even increase the efficacy of existing antibiotics. Using fluorescence-based ethidium bromide accumulation, broth microdilution, and checkerboard assays, we evaluated 26 endogenous steroidal hormones and neurosteroids, along with 30 synthetic derivatives, for their ability to enhance antibiotic susceptibility in multidrug-resistant <i>Staphylococcus aureus</i>. Structure-activity relationship analysis identified compounds <strong>13</strong> and <strong>16</strong> as lead candidates, exhibiting strong efflux pump inhibition and marked reductions in the minimum inhibitory concentrations of ciprofloxacin and erythromycin. Both compounds showed additive effects in checkerboard assays. Modifications at C-3 (polar substitution) and C-17 (3α,5β-stereochemistry and nonpolar substitution) were essential for potent efflux inhibition and sensitization, although these modifications were not additive when combined. Transcriptome analysis further revealed that compound <strong>13</strong> significantly downregulated <i>S. aureus</i> virulence-associated genes when administered alone or in combination with antibiotics. Cytotoxicity assessment in human peripheral blood mononuclear cells and receptor transactivation assays for estrogen, androgen, and progesterone receptors indicated that the most active derivatives were non-toxic and lacked detectable endocrine activity, suggesting a favorable safety profile. Overall, these findings support the concept that rationally designed andostane-based steroidal scaffolds can function as competitive bacterial efflux pump inhibitors and serve as potential antibiotic adjuvants to mitigate efflux-mediated resistance.</p><h4><strong>Instrumentation</strong></h4><h5><strong>Structural characterization</strong></h5><ul><li><strong>AVANCE III 400 MHz NMR spectrometer</strong> (Bruker)</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=3&amp;search=LTQ+Orbitrap+XL"><strong>LTQ Orbitrap XL HRMS</strong></a> (Thermo Fisher Scientific, ESI)</li></ul></div>

Steroidal hormones and neurosteroids – novel therapeutic strategies in bacterial infections

<p><strong>Metformin is currently the first-line oral drug of choice for the treatment of type 2 diabetes. It reduces glucose production in the liver, improves tissue sensitivity to insulin, and does not cause weight gain or hypoglycemia, which sets it apart from some other antidiabetic drugs. Moreover, its long-term beneficial effects on the risk of cardiovascular complications and mortality in people with type 2 diabetes have been well established. Researchers from the Institute of Physiology CAS (IPHYS) have identified a new group of blood metabolites that could help physicians objectively monitor whether patients with type 2 diabetes are taking their metformin as prescribed.</strong></p><h4><strong>New biomarkers for metformin use</strong></h4><p>A team led by Tomáš Čajka from the Laboratory of Translational Metabolism at IPHYS analyzed plasma samples from <strong>637 patients with type 2 diabetes treated with metformin</strong> and <strong>143 non-diabetic controls</strong> using advanced metabolomics and lipidomics. Among 614 detected metabolites, they identified five from the group of <strong>N-lactoyl-amino acids </strong>(e.g. N‑lactoyl-phenylalanine), which had previously been seen as unknown signals due to missing reference spectra in databases. The levels of these metabolites in the blood closely reflected the plasma concentrations of metformin. In patients with the highest metformin exposure, the concentrations of these metabolites were up to 7.2 times higher than in controls.</p><h4><strong>A sensitive “fingerprint” of the drug’s effect</strong></h4><p>N-Lactoyl-amino acids are formed in cells by combining lactate and amino acids, thus reflecting the metformin-induced changes in cellular energy metabolism. “<i>Importantly, even though they occur in plasma only at nanomolar concentrations, they reliably distinguish patients who take metformin regularly from those who take it irregularly or not at all</i>,” emphasizes T. Čajka.</p><h4><strong>Metabolomics in practice and international collaboration</strong></h4><p>The study also provides a detailed description of broader metabolic changes in type 2 diabetes, including increases in lactate, organic acids, and branched-chain amino acids, as well as extensive remodelling of the lipid profile. In addition to T. Čajka’s team, collaborators from the Institute for <strong>Clinical and Experimental Medicine in Prague</strong> and the <strong>West Coast Metabolomics Center</strong> (University of California, Davis) also participated in the study.</p><p>The results demonstrate that advanced metabolomics approaches developed at IPHYS within the <strong>CarDia project</strong> can find highly practical applications both in clinical studies and in personalized monitoring of treatment in patients with diabetes.</p><blockquote><h4><strong>The original article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://ascpt.onlinelibrary.wiley.com/doi/10.1002/cpt.70205"><strong>Untargeted Metabolomics Identifies N-Lactoyl-Amino Acids as Dose-Responsive Plasma Biomarkers of Metformin Adherence in Type 2 Diabetes</strong></a></h4><p>Tomas Cajka, Jiri Hricko, Lucie Rudl Kulhava, Michaela Paucova, Michaela Novakova, Veronika Hola, Stanislava Rakusanova, Oliver Fiehn, Vojtech Skop, Ivana Lankova, Iva Miskova, Terezie Pelikanova, Martin Haluzik</p><p>Clin Pharmacol Ther, 119: 1057-1069</p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1002/cpt.70205">https://doi.org/10.1002/cpt.70205</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><h4><strong>Abstract</strong></h4><p>Metformin is the most widely prescribed antidiabetic drug, yet adherence remains difficult to objectively assess. Using untargeted metabolomics and lipidomics, we analyzed plasma from 637 patients with type 2 diabetes (T2D) with confirmed metformin use and 143 nondiabetic controls, annotating 614 metabolites. Patients were stratified by plasma metformin into sub-therapeutic, therapeutic, and supra-therapeutic groups, and associations were evaluated by multiple linear regression and composite metabolite ranking. Five previously unannotated features were structurally identified as N-lactoyl-amino acids, whose levels correlated strongly with plasma metformin (ρ = 0.42–0.55, P &lt; 0.0001) and increased up to 7.2-fold in the supra-therapeutic group (&gt; 2000 ng/mL). While N-lactoyl-amino acids were consistently detected in the nanomolar range, they still displayed robust and dose-dependent associations with metformin. Broader metabolic changes in T2D included elevated lactate, organic acids, and branched-chain amino acids, together with reduced urea cycle metabolites. Lipidomics showed increases in saturated triacylglycerols and diacylglycerols and decreases in cholesteryl esters, sphingomyelins, and phospholipids. These findings establish N-lactoyl-amino acids as robust, dose-responsive plasma biomarkers of metformin exposure. Despite being up to four orders of magnitude less abundant than their amino acid precursors, they sensitively reflect mitochondrial lactate overflow and pharmacodynamic adaptation, offering objective assessment of adherence.</p>

New blood biomarkers reveal how faithfully diabetes patients take metformin

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The Czech Academy of Sciences (CAS) was established by Act No. 283/1992 Coll. as the Czech successor of the former Czechoslovak Academy of Sciences. It is set up as a complex of 54 public research institutions.

Czech Academy of Sciences

The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague) is a leading scientific institution in the Czech Republic, recognized internationally. Its primary mission is basic research in the fields of chemical biology and medicinal chemistry, organic and material oriented chemistry, chemistry of natural compounds, biochemistry and molecular biology, physical chemistry, theoretical chemistry, and analytical chemistry. 

Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences

Organomation, founded in 1959, designs and manufactures high-quality nitrogen evaporators and extraction systems. Known for innovation and durability, their lab instruments are used globally for efficient sample preparation with strong customer support.

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Phenomenex Luna Omega C18 HPLC Columns

Luna Omega C18 is an excellent first choice for chromatographers who are just starting method development or attempting to improve upon existing chromatographic results with other C18s.

<p><strong>First Choice C18 for Hydrophobic Selectivity</strong></p><p><strong>Luna Omega C18</strong> is an excellent first choice for chromatographers who are just starting method development or attempting to improve upon existing chromatographic results with other C18s. With its higher performance potential, excellent retention profile, and greater inertness, the Luna Omega C18 was designed to be the new all purpose UHPLC solution for industries all over the world.</p><ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>Fully Scalable Particle Size UHPLC HPLC Preparative</li><li>Highest Reproducibility and Batch-to-batch Confidence</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Luna_Omega_C18_HPLC_Column_4846f08b6d.jpg" alt="Phenomenex: Luna Omega C18 HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Luna_Omega_C18_HPLC_Column_4846f08b6d.jpg 245w," sizes="100vw" width="841" height="308"></p><ul><li><strong>Carbon Load</strong>: null %, 11.0 %</li><li><strong>Surface Area (m²/g)</strong>: 800</li><li><strong>Particle Size</strong>: 1.6, 3, 5</li><li><strong>Recommended Use:</strong> Reproducible C18 phase for HPLC and UHPLC separations of hydrophobic compounds</li></ul><h4><strong>Greater Retention and Better Results</strong></h4><p>Higher efficiency levels in combination with excellent stationary phase coverage and greater particle inert ness, translates to improved separation power for you. Now you can utilize the greater retention of Luna Omega C18 to tackle both easy and difficult separations.</p><h4><strong>Consistent and Reliable C18 Results</strong></h4><p>Batch-to-batch and column-to-column, Luna Omega media and columns are designed to be consistent and incredibly accurate tools for your analysis. Each batch and column are quality tested to ensure dependability and reproducibility.</p><h4><strong>All Purpose HPLC and UHPLC Selectivity</strong></h4><p>Strong and focused hydrophobic retention, incredible efficiency and valuable inertness of Luna Omega C18 columns make them an excellent choice for small mixtures of compounds differing in hydrophobicity as well as large mixtures of compounds like drug impurity and degradation profiles and natural products.</p><h4><strong>Higher Efficiency Compared to Other Fully Porous Particles</strong></h4><p>Luna Omega 1.6 µm, 3 µm, and 5 µm particle columns provide higher efficiencies compared to other silica C18 columns with fully porous particles of the same size due to the absence of micropores within the particles.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Luna_Omega_C18_vs_Waters_ACQUITY_BEH_C18_45acf914af.jpg" alt="Phenomenex: Luna Omega C18 vs Waters ACQUITY BEH C18" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Luna_Omega_C18_vs_Waters_ACQUITY_BEH_C18_45acf914af.jpg 196w," sizes="100vw" width="900" height="718"></p><blockquote><p class="cke-user_style-important"><strong>Stationary phase Luna Omega C18 is provided in these column types: microbore and minibore</strong></p></blockquote><h5><strong>Luna Omega C18 HPLC Microbore and Minibore Columns are available with these parameters:</strong></h5><p><strong>Microbore Columns</strong></p><ul><li><strong>Column length (mm): </strong>50, 100, 150</li><li><strong>Column ID (mm): </strong>1</li><li><strong>Particle size (µm): </strong>1.6</li></ul><p><strong>Minibore Columns</strong></p><ul><li><strong>Column length (mm): </strong>30,<strong> </strong>50, 100, 150</li><li><strong>Column ID (mm): </strong>2.1</li><li><strong>Particle size (µm): </strong>1.6</li></ul><h3><strong>Phenomenex Luna Omega HPLC/UHPLC Columns</strong></h3><p>The cutting edge thermally modified Luna Omega particle delivers high efficiency, ruggedness, reproducibility, and dependability for a wide range of chromatographic analyses. Luna Omega HPLC and UHPLC columns are built upon more then 20 years of applied knowledge, invention, and customer experience in the manufacture and packing of LC columns. The particle’s novel design and proprietary manufacturing process results in greater particle inertness, a stronger particle morphology, and more consistent porosity.</p><ul><li>Greater separation muscle and retention</li><li>Consistent porous structure and elimination of micropores</li><li>Extreme ruggedness and reproducibility</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Thermal_modified_pore_structure_of_Luna_Omega_Column_particles_37138bb135.jpg" alt="Phenomenex:Thermal modified pore structure of Luna Omega Column particles" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Thermal_modified_pore_structure_of_Luna_Omega_Column_particles_37138bb135.jpg 245w," sizes="100vw" width="1257" height="369"></p><h3><strong>Explore Luna Omega Columns</strong></h3><h5><strong>Astounding Performance</strong></h5><p>The undeniably high efficiency levels found in each Luna Omega UHPLC column provide you with the potential of huge gains in method performance. While traditional silica and hybrid fully porous particles claim high performance, when compared to Luna Omega 1.6 μm, they drastically fall short and prevent UHPLC scientists from reaching their UHPLC potential.</p><h5><strong>Separation Muscle</strong></h5><p>Our industry leading bonding technologies in conjunction with high efficiency levels ensure excellent stationary phase coverage and improved separation power. Now, with Luna Omega 1.6 μm, you can turn difficult separations into resolution achievements.</p><h5><strong>Inert Foundation</strong></h5><p>Luna Omega UHPLC columns contain a unique silica modified using a proprietary, post-synthetic thermal treatment process to provide extraordinary mechanical strength and significantly greater inertness than traditional fully porous and hybrid materials. This greatly minimizes secondary interactions that negatively affect peak shape, allowing for greater method accuracy.</p><h5><strong>Consistent Results</strong></h5><p>Batch-to-batch and column-to-column, Luna® Omega media and columns are designed to be consistent and incredibly accurate tools for your analysis. Each batch and column are quality tested to ensure dependability and reproducibility.</p>

Phenomenex Luna Omega Polar C18 HPLC Columns

Luna Omega Polar C18 is a novel HPLC and UHPLC stationary phase capable of providing a unique selectivity within a wide elution window and increased retention for both polar and non polar analytes.

<p><strong>Reversed Phase Polar Retention Without the Headache</strong></p><p><strong>Luna Omega Polar C18</strong> is a novel HPLC and UHPLC stationary phase capable of providing a unique selectivity within a wide elution window and increased retention for both<strong> polar</strong> and <strong>non polar analytes</strong>. The all purpose C18 ligand provides <strong>hydrophobic interactions</strong> while a polar modified particle surface provides enhanced <strong>polar retention</strong> and also<strong> aqueous stability</strong>. These attributes make the Luna Omega Polar C18an excellent choice for balanced retention of polar and hydrophobic compounds as well as to solely enhance retention of highly polar compounds.</p><ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>Fully Scalable Particle Size UHPLC HPLC Preparative</li><li>100 % Aqueous Stable C18 Selectivity</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Luna_Omega_Polar_C18_HPLC_Column_a9c42ff59a.jpg" alt="Phenomenex: Luna Omega Polar C18 HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Luna_Omega_Polar_C18_HPLC_Column_a9c42ff59a.jpg 245w," sizes="100vw" width="870" height="315"></p><ul><li><strong>Carbon Load</strong>: null %, 11.0 %</li><li><strong>Particle Size</strong>: 1.6, 3, 5</li><li><strong>Recommended Use:</strong> Polar retentive C18 phase for HPLC and UHPLC separations of hydrophobic/polar compounds</li></ul><h4><strong>Not Just Another C18…Built Different</strong></h4><p>Luna Omega Polar C18 is a uniquely modified C18 based chemistry that has been optimized to improve the performance of polar analyses. This new particle surface chemistry makes the Polar C18 applicable to all industries that utilize HPLC for mixtures of polar and non polar compounds.</p><h4><strong>Stable Retention &amp; 100% Aqueous Stable&nbsp;</strong></h4><p>Traditional C18 phases are known to collapse under 100 % aqueous conditions, causing retention loss of compounds and a method development headaches. That is why an advanced proprietary bonding technology was used for the Luna Omega Polar C18 in order to ensure aqueous stability.&nbsp;</p><h4><strong>Increased Reversed Phase Polar Retention</strong></h4><p>With its polar modified surface, the Luna Omega Polar C18 offers UHPLC users enhanced separation power that can greatly improve resolution values for target compounds.</p><blockquote><p class="cke-user_style-important"><strong>Stationary phase Luna Omega Polar C18 is provided in these column types: analytical, microbore, minibore, midbore and preparative</strong></p></blockquote><h5><strong>Luna Omega Polar C18 HPLC Microbore, Minibore, MidBore and Analytical Columns are available with these parameters:</strong></h5><p><strong>Microbore Columns</strong></p><ul><li><strong>Column length (mm): </strong>50, 100, 150</li><li><strong>Column ID (mm): </strong>1</li><li><strong>Particle size (µm): </strong>1.6</li></ul><p><strong>Minibore Columns</strong></p><ul><li><strong>Column length (mm): </strong>30,<strong> </strong>50, 100, 150</li><li><strong>Column ID (mm): </strong>2.1</li><li><strong>Particle size (µm): </strong>1.6; 3, 5</li></ul><p><strong>MidBore Columns</strong></p><ul><li><strong>Column length (mm): </strong>50, 100, 150</li><li><strong>Column ID (mm): </strong>3</li><li><strong>Particle size (µm):</strong> 3, 5</li></ul><p><strong>Analytical Columns</strong></p><ul><li><strong>Column length (mm): </strong>50, 100, 150, 250</li><li><strong>Column ID (mm): </strong>4.6</li><li><strong>Particle size (µm):</strong> 3, 5</li></ul><h3><strong>Phenomenex Luna Omega HPLC/UHPLC Columns</strong></h3><p>The cutting edge thermally modified Luna Omega particle delivers high efficiency, ruggedness, reproducibility, and dependability for a wide range of chromatographic analyses. Luna Omega HPLC and UHPLC columns are built upon more then 20 years of applied knowledge, invention, and customer experience in the manufacture and packing of LC columns. The particle’s novel design and proprietary manufacturing process results in greater particle inertness, a stronger particle morphology, and more consistent porosity.</p><ul><li>Greater separation muscle and retention</li><li>Consistent porous structure and elimination of micropores</li><li>Extreme ruggedness and reproducibility</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Thermal_modified_pore_structure_of_Luna_Omega_Column_particles_37138bb135.jpg" alt="Phenomenex:Thermal modified pore structure of Luna Omega Column particles" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Thermal_modified_pore_structure_of_Luna_Omega_Column_particles_37138bb135.jpg 245w," sizes="100vw" width="1257" height="369"></p><h3><strong>Explore Luna Omega Columns</strong></h3><h5><strong>Astounding Performance</strong></h5><p>The undeniably high efficiency levels found in each Luna Omega UHPLC column provide you with the potential of huge gains in method performance. While traditional silica and hybrid fully porous particles claim high performance, when compared to Luna Omega 1.6 μm, they drastically fall short and prevent UHPLC scientists from reaching their UHPLC potential.</p><h5><strong>Separation Muscle</strong></h5><p>Our industry leading bonding technologies in conjunction with high efficiency levels ensure excellent stationary phase coverage and improved separation power. Now, with Luna Omega 1.6 μm, you can turn difficult separations into resolution achievements.</p><h5><strong>Inert Foundation</strong></h5><p>Luna Omega UHPLC columns contain a unique silica modified using a proprietary, post-synthetic thermal treatment process to provide extraordinary mechanical strength and significantly greater inertness than traditional fully porous and hybrid materials. This greatly minimizes secondary interactions that negatively affect peak shape, allowing for greater method accuracy.</p><h5><strong>Consistent Results</strong></h5><p>Batch-to-batch and column-to-column, Luna® Omega media and columns are designed to be consistent and incredibly accurate tools for your analysis. Each batch and column are quality tested to ensure dependability and reproducibility.</p>

Phenomenex Luna Omega PS C18 HPLC Columns

Luna Omega PS C18 is a unique mixed interaction stationary phase that provides incredibly useful polar and non-polar retention. 

<p><strong>Improve Peak Shape for Bases Without the Headache</strong></p><p><strong>Luna Omega PS C18</strong> is a unique mixed interaction stationary phase that provides incredibly useful <strong>polar</strong> and <strong>non-polar retention</strong>. The surface of the PS C18 contains a positive charge which aids in the retention of acidic compounds and provides better peak shape for bases through ionic interactions, while the C18 ligand promotes general reversed phase retention. This mixed-mode selectivity allows for greater separation between compounds with varying functional groups.</p><ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>Fully Scalable Particle Size UHPLC HPLC Preparative</li><li>Charged Surface C18 that is 100 % Aqueous Stable</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Luna_Omega_PS_C18_HPLC_Column_bf5cf29276.webp" alt="Phenomenex: Luna Omega PS C18 HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Luna_Omega_PS_C18_HPLC_Column_bf5cf29276.webp 245w," sizes="100vw" width="500" height="150"></p><ul><li><strong>Carbon Load</strong>: null %, 11.0 %</li><li><strong>Particle Size</strong>: 1.6, 3, 5</li><li><strong>Recommended Use:</strong> Positive surface C18 phase for HPLC and UHPLC separations of hydrophobic/basic compounds</li></ul><h4><strong>A C18 With a Positive Twist</strong></h4><p>Luna Omega PS C18 has been fine tuned and manufactured by Phenomenex to provide a mixed selectivity that is highly useful for method development involving either combinations of polar and nonpolar compounds, or just one single compound class with small changes in functional groups.</p><h4><strong>Enhanced Selectivity and Polar Retention</strong></h4><p>With its positive surface (PS) the Luna Omega PS C18 provides valuable increase in retention of acids through ionic/polar interactions. In addition, the C18 ligand also stimulates hydrophobic retention that greatly promotes increased resolution between analytes of interest.</p><h4><strong>Think Outside the Traditional C18 Selectivity</strong></h4><p>Traditional C18 phases may not always be the best option. A HPLC and UHPLC column that has both polar and hydrophobic versatility allows for great method development flexibility.</p><h4><strong>Better Peak Shape for Bases</strong></h4><p>While traditional alkyl phases are prone to show tailing for basic compounds because of secondary interactions occurring at the silica surface, the surface of the Luna Omega PS C18 was designed with positive charges that serve to repel strong basic species and consistently display sharp peak shape.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Better_Peak_Shape_for_Bases_Comparison_of_Luna_Omega_PS_C18_with_C18_Columns_from_other_manufacturers_3667109291.jpg" alt="Phenomenex: Better Peak Shape for Bases (Comparison of Luna Omega PS C18 with C18 Columns from other manufacturers)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Better_Peak_Shape_for_Bases_Comparison_of_Luna_Omega_PS_C18_with_C18_Columns_from_other_manufacturers_3667109291.jpg 245w," sizes="100vw" width="905" height="485"></p><blockquote><p class="cke-user_style-important"><strong>Stationary phase Luna Omega PS C18 is provided in these column types: analytical, minibore, midbore and preparative</strong></p></blockquote><h5><strong>Luna Omega PS C18 HPLC Minibore, MidBore and Analytical Columns are available with these parameters:</strong></h5><p><strong>Minibore Columns</strong></p><ul><li><strong>Column length (mm): </strong>30,<strong> </strong>50, 100, 150</li><li><strong>Column ID (mm): </strong>2.1</li><li><strong>Particle size (µm): </strong>1.6; 3, 5</li></ul><p><strong>MidBore Columns</strong></p><ul><li><strong>Column length (mm): </strong>50, 100, 150</li><li><strong>Column ID (mm): </strong>3</li><li><strong>Particle size (µm):</strong> 3, 5</li></ul><p><strong>Analytical Columns</strong></p><ul><li><strong>Column length (mm): </strong>50, 100, 150, 250</li><li><strong>Column ID (mm): </strong>4.6</li><li><strong>Particle size (µm):</strong> 3, 5</li></ul><h3><strong>Phenomenex Luna Omega HPLC/UHPLC Columns</strong></h3><p>The cutting edge thermally modified Luna Omega particle delivers high efficiency, ruggedness, reproducibility, and dependability for a wide range of chromatographic analyses. Luna Omega HPLC and UHPLC columns are built upon more then 20 years of applied knowledge, invention, and customer experience in the manufacture and packing of LC columns. The particle’s novel design and proprietary manufacturing process results in greater particle inertness, a stronger particle morphology, and more consistent porosity.</p><ul><li>Greater separation muscle and retention</li><li>Consistent porous structure and elimination of micropores</li><li>Extreme ruggedness and reproducibility</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Thermal_modified_pore_structure_of_Luna_Omega_Column_particles_37138bb135.jpg" alt="Phenomenex:Thermal modified pore structure of Luna Omega Column particles" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Thermal_modified_pore_structure_of_Luna_Omega_Column_particles_37138bb135.jpg 245w," sizes="100vw" width="1257" height="369"></p><h3><strong>Explore Luna Omega Columns</strong></h3><h5><strong>Astounding Performance</strong></h5><p>The undeniably high efficiency levels found in each Luna Omega UHPLC column provide you with the potential of huge gains in method performance. While traditional silica and hybrid fully porous particles claim high performance, when compared to Luna Omega 1.6 μm, they drastically fall short and prevent UHPLC scientists from reaching their UHPLC potential.</p><h5><strong>Separation Muscle</strong></h5><p>Our industry leading bonding technologies in conjunction with high efficiency levels ensure excellent stationary phase coverage and improved separation power. Now, with Luna Omega 1.6 μm, you can turn difficult separations into resolution achievements.</p><h5><strong>Inert Foundation</strong></h5><p>Luna Omega UHPLC columns contain a unique silica modified using a proprietary, post-synthetic thermal treatment process to provide extraordinary mechanical strength and significantly greater inertness than traditional fully porous and hybrid materials. This greatly minimizes secondary interactions that negatively affect peak shape, allowing for greater method accuracy.</p><h5><strong>Consistent Results</strong></h5><p>Batch-to-batch and column-to-column, Luna® Omega media and columns are designed to be consistent and incredibly accurate tools for your analysis. Each batch and column are quality tested to ensure dependability and reproducibility.</p>

Phenomenex Peptide-PS-C18 LC columns

Biozen Peptide PS-C18 is a mixed-mode phase that combines a positively charged surface ligand and a C18 ligand.

<p><strong>Biozen Peptide PS-C18</strong> is a mixed-mode phase that combines a <strong>positively charged surface ligand</strong> and a <strong>C18 ligand</strong>. The result is an HPLC column phase that provides excellent retention for <strong>biologics.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Biozen_Peptide_PS_C18_HPLC_Column_e114259469.webp" alt="Phenomenex: Biozen Peptide-PS-C18 HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Biozen_Peptide_PS_C18_HPLC_Column_e114259469.webp 245w," sizes="100vw" width="500" height="150"></p><ul><li><strong>Separation Mode:</strong> Reversed Phase</li><li><strong>Pore size: </strong>100</li><li><strong>Particle size: </strong>1.6, 3</li><li><strong>Recommended Use:</strong> Excellent retention of peptides for both peptide mapping and peptide quantitation applications</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>

Phenomenex Biozen Peptide-XB-C18 LC columns

Biozen Peptide XB-C18 uses core-shell particles for fast elution, sharper peaks, better peak capacity, and higher sensitivity.

<p>Digested mAbs or ADCs typically include a large body of compounds which are crucial to understanding post translation modifications. So we designed our <strong>Biozen™ Peptide columns</strong> to offer highly useful and unique retention profiles. <strong>Biozen Peptide XB-C18</strong> allows for <strong>fast</strong> and <strong>effective elution windows</strong> by utilizing core-shell particles to gain sharper peaks, better peak capacities, and overall higher sensitivity.</p><p><strong>Biozen Peptide columns provide:</strong></p><ul><li>Unique retention profiles</li><li>Greater peak coverage</li><li>High efficiency on both HPLC and UHPLC</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Bio_Zen_Peptide_XB_C18_cd462e9b72.jpg" alt="Phenomenex: BioZen Peptide-XB-C18" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Bio_Zen_Peptide_XB_C18_cd462e9b72.jpg 245w," sizes="100vw" width="839" height="314"></p><ul><li><strong>Separation Mode:</strong> Reversed Phase</li><li><strong>Pore size: </strong>100</li><li><strong>Particle size: </strong>1.7, 2.6, 5</li><li><strong>Recommended Use:</strong> Overall retention of both acidic and basic peptides for both peptide mapping and peptide quantitation applications</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>

Phenomenex Biozen Oligo LC columns

Biozen Oligo is an organo-silica, core-shell particle bonded with a C18 stationary phase. 

<p><strong>Advanced Oligonucleotide Analysis</strong></p><p><strong>Biozen Oligo</strong> is an organo-silica, core-shell particle bonded with a C18 stationary phase. This column offers a unique combination of Core-Shell performance gains such as speed, sensitivity and resolution plus the high pH ruggedness necessary for <strong>oligonucleotide separations</strong>. Additionally, Biozen Oligo is packaged in <strong>BioTi™</strong>, a novel <strong>bio-inert hardware</strong> that serves to alleviate the sample loss and adsorption issues.</p><p><strong>Increased Recovery and Reproducibility with NEW Biozen Oligo</strong></p><ul><li>BioTi™ Hardware Reduces Sample Loss and Adsorption</li><li>Robustness at High pH and Temperature</li><li>Core-Shell Advantage for High Efficiency</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Biozen_Oligo_HPLC_Column_3cf3dd7577.webp" alt="Phenomenex: Biozen Oligo HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Biozen_Oligo_HPLC_Column_3cf3dd7577.webp 245w," sizes="100vw" width="500" height="150"></p><ul><li><strong>Separation Mode:</strong> Reversed Phase</li><li><strong>Particle size: </strong>1.7, 2.6</li><li><strong>Recommended Use:</strong> Analytical characterization of oligonucleotides</li></ul><h4><strong>Patented Technology and Advanced Core-Shell Particle Chemistry</strong></h4><p><strong>Biozen Oligo utilizes organo-silica core-shell technology to:​</strong></p><ul><li>Minimize band broadening associated with diffusion and oligonucleotide mass transfer kinetics​</li><li>Increase efficiency to produce narrower peaks, ideal for resolving closely eluting impurities​</li><li>Patented grafting process ensures high pH and temperature resistance from ethylene cross-linking.​</li></ul><p>&nbsp;</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Patented_Technology_and_Advanced_Core_Shell_Particle_Chemistry_ca0e0a2b72.jpg" alt="Phenomenex: Patented Technology and Advanced Core-Shell Particle Chemistry" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Patented_Technology_and_Advanced_Core_Shell_Particle_Chemistry_ca0e0a2b72.jpg 245w," sizes="100vw" width="905" height="454"></p><h4><strong>BioTi vs Stainless Steel Column Hardware​</strong></h4><p>Biozen Oligo's bioinert hardware enhances recovery, sensitivity, and chromatographic reproducibility by mitigating non-specific adsorption. Stainless steel equivalents fails to prevent this resulting in poor recovery, peak tailing, and residual carryover.​</p><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>

Thermo Scientific Accucore Vanquish C18+ UHPLC Columns

Choose Thermo Scientific™ Accucore™ Vanquish™ C18+ UHPLC columns, containing uniquely efficient 1.5 μm solid core particles for use with the Thermo Scientific™ Vanquish™ UHPLC system

<p><strong>Choose Thermo Scientific™ Accucore™ Vanquish™ C18+ UHPLC columns, containing uniquely efficient 1.5 μm solid core particles for use with the </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=40&amp;manufacturerItems=3"><strong>Thermo Scientific™ Vanquish™ UHPLC system</strong></a>. Founded on state-of-the-art Core Enhanced Technology™, this sub-2 μm particle next-generation column has ultra-short diffusion paths that result in extremely efficient separations. This high efficiency enables fast separation and the resolution of complex mixtures. In concert with Vanquish systems, these columns deliver more results with better separations, thereby enhancing workflows and productivity.</p><h4><strong>Specifications</strong></h4><ul><li><strong>Endcapped:</strong> Yes</li><li><strong>For Use With:</strong> UHPLC</li><li><strong>Max. Pressure: </strong>21756 psi (1500 bar)</li><li><strong>Packing Material:</strong> Spherical, Solid Core, Ultrapure Silica</li><li><strong>Particle Shape:</strong> Spherical Solid Core</li><li><strong>Stationary Phase:</strong> C18</li><li><strong>Surface Area:</strong> 110 m²/g</li><li><strong>Temperature:</strong> 70°C</li><li><strong>USP Type: </strong>L1</li><li><strong>Carbon Load</strong>: 6.5%</li><li><strong>Phase:</strong> Reversed Phase</li><li><strong>Pore Size: </strong>80 Å</li><li><strong>pH: </strong>2 to 9</li></ul>

Thermo Scientific Accucore C18 HPLC Columns

Use this column, with its specially designed solid core, for a broad range of nonpolar analytes across multiple applications.

<p><strong>Achieve fast, high-resolution separations at low backpressures using Thermo Scientific™ Accucore™ C18 LC columns. Rugged 2.6μm solid-core particles ensure high efficiencies and enable compatibility with both HPLC and UHPLC platforms.&nbsp;</strong></p><p>The high bonded phase coverage provides optimal retention of a broad range of nonpolar analytes across multiple applications. Robust bonding technology and automated packing procedures ensure excellent reproducibility and long column lifetimes.</p><h5><strong>Optimal Selectivity for Nonpolar Compounds</strong></h5><ul><li>Hydrophobic interaction mechanism</li></ul><h5><strong>Fast Separations</strong></h5><ul><li>2.6μm core-enhanced technology particles enable operation at high flow rates without generating excessive backpressures.</li></ul><h5><strong>Excellent Peak Shapes for Enhanced Resolution and Sensitivity</strong></h5><ul><li>Solid core 2.6μm particles and narrow particle size distribution reduce band broadening and improve separation efficiencies.</li><li>High surface coverage of silica minimizes secondary interactions and peak tailing.</li></ul><h5><strong>Low Backpressures</strong></h5><ul><li>Solid core 2.6μm particles for less backpressure compared to UHPLC sub-2μm particles</li><li>Compatible with conventional HPLC instrumentation and UHPLC platforms</li></ul><h5><strong>Excellent Reproducibility and Robustness</strong></h5><ul><li>Advanced bonding technology</li><li>Automated packing process</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Endcapped:</strong> Yes</li><li><strong>For Use With:</strong> HPLC</li><li><strong>Max. Pressure: </strong>14500 psi (1000 bar)</li><li><strong>Packing Material:</strong> Spherical, Solid Core, Ultrapure Silica</li><li><strong>Particle Shape:</strong> Spherical Solid Core</li><li><strong>Stationary Phase:</strong> C18</li><li><strong>Surface Area:</strong> 130 m²/g</li><li><strong>Temperature:</strong> 70°C</li><li><strong>USP Type: </strong>L1</li><li><strong>Carbon Load</strong>: 9%</li><li><strong>Phase:</strong> Reversed Phase</li><li><strong>Pore Size: </strong>80 Å</li><li><strong>pH: </strong>1 to 11</li></ul>

Thermo Scientific Accucore aQ C18 Polar Endcapped HPLC Columns

Separate polar compounds with improved speed and resolution using Thermo Scientific™ Accucore™ aQ C18 Polar Endcapped LC columns.

<p><strong>Separate polar compounds with improved speed and resolution using Thermo Scientific™ Accucore™ aQ C18 Polar Endcapped LC columns. Rugged 2.6μm solid-core particles enable fast, high-efficiency separations at low backpressures.</strong></p><p>The polar endcapped C18 stationary phase provides optimal retention of polar analytes and is fully compatible with 100% aqueous mobile phases. Robust bonding technology and automated packing procedures ensure excellent reproducibility and long column lifetimes.</p><h5><strong>Alternative Selectivity</strong></h5><ul><li>Polar endcapped C18 stationary phase provides optimum retention of polar analytes</li><li>Accucore aQ Columns are compatible with highly aqueous mobile phases.</li><li>Polar encapping allows use in 100% aqueous mobile phases without loss of performance or stability.</li></ul><h5><strong>Fast Separations</strong></h5><ul><li>2.6μm core-enhanced technology particles enable operation at high flow rates without generating excessive backpressures.</li></ul><h5><strong>Excellent Peak Shapes for Enhanced Resolution and Sensitivity</strong></h5><ul><li>Solid-core 2.6μm particles and narrow particle size distribution reduce band broadening and improve separation efficiencies.</li><li>High surface coverage of silica minimizes secondary interactions and peak tailing.</li></ul><h5><strong>Low Backpressures</strong></h5><ul><li>Solid-core 2.6μm particles for less backpressure compared to UHPLC sub-2μm particles</li><li>Compatible with conventional HPLC instrumentation and UHPLC platforms</li></ul><h5><strong>Excellent Reproducibility and Robustness</strong></h5><ul><li>Advanced bonding technology</li><li>Automated packing process</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Endcapped:</strong> Polar</li><li><strong>Max. Pressure: </strong>14500 psi (1000 bar)</li><li><strong>Packing Material:</strong> Spherical, Solid Core, Ultrapure Silica</li><li><strong>Particle Shape:</strong> Spherical Solid Core</li><li><strong>Stationary Phase:</strong> C18</li><li><strong>Surface Area:</strong> 130 m²/g</li><li><strong>Temperature:</strong> 70°C</li><li><strong>USP Type: </strong>L1</li><li><strong>Carbon Load</strong>: 9%</li><li><strong>Phase:</strong> Reversed Phase</li><li><strong>Pore Size: </strong>80 Å</li><li><strong>pH: </strong>2 to 9</li></ul>

Thermo Scientific Accucore Polar Premium HPLC Columns

Achieve fast, high-resolution separations of polar and nonpolar analytes using Thermo Scientific™ Accucore™ Polar Premium LC columns.

<p><strong>Achieve fast, high-resolution separations of polar and nonpolar analytes using Thermo Scientific™ Accucore™ Polar Premium LC columns. Rugged 2.6μm solid-core particles enable fast, high-efficiency separations at low backpressures.&nbsp;</strong></p><p>The robust amide-embedded C18 stationary phase provides unique selectivity complementary to conventional C18 columns, is stable from pH 1.5–10, and is fully compatible with highly aqueous mobile phases. Robust bonding technology and automated packing procedures ensure excellent reproducibility and long column lifetimes.</p><h5><strong>Alternative Selectivity</strong></h5><ul><li>Polar embedded reverse phase material offers complementary selectivity to standard C18 columns.</li></ul><h5><strong>Stable over Wide pH Range</strong></h5><ul><li>Specially designed bonded phase is stable from pH 1.5–10.5.</li></ul><h5><strong>Compatible with Highly Aqueous Mobile Phases</strong></h5><ul><li>Rugged amide-embedded C18 phase will not undergo phase collapse in 100% aqueous mobile phase.</li></ul><h5><strong>Fast Separations</strong></h5><ul><li>2.6μm core-enhanced technology particles enable operation at high flow rates without generating excessive backpressures.</li></ul><h5><strong>Excellent Peak Shapes for Enhanced Resolution and Sensitivity</strong></h5><ul><li>Solid-core 2.6μm particles and narrow particle size distribution reduce band broadening and improve separation efficiencies.</li><li>High surface coverage of silica minimizes secondary interactions and peak tailing.</li></ul><h5><strong>Low Backpressures</strong></h5><ul><li>Solid-core 2.6μm particles for less backpressure compared to UHPLC sub-2μm particles</li><li>Compatible with conventional HPLC instrumentation and UHPLC platforms</li></ul><h5><strong>Excellent Reproducibility and Robustness</strong></h5><ul><li>Advanced bonding technology</li><li>Automated packing process</li></ul><h4><strong>Specifications</strong></h4><ul><li><strong>Endcapped:</strong> Yes</li><li><strong>Max. Pressure: </strong>14500 psi (1000 bar)</li><li><strong>Packing Material:</strong> Spherical, Solid Core, Ultrapure Silica</li><li><strong>Particle Shape:</strong> Spherical Solid Core</li><li><strong>Stationary Phase:</strong> Polar Embedded</li><li><strong>Surface Area:</strong> 90 m²/g</li><li><strong>Temperature:</strong> 70°C</li><li><strong>USP Type: </strong>L60</li><li><strong>Carbon Load</strong>: 9%</li><li><strong>Phase:</strong> Reversed Phase</li><li><strong>Pore Size: </strong>150 Å</li><li><strong>pH: </strong>1.5 to 10.5</li></ul>

Products from category C18 HPLC columns focused on Consumables - page 6

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