La séparation des N-glycanes libérés, neutres à très acides, en fonction de leur charge est un procédé efficace pour grouper rapidement les N-glycanes selon les différents résidus terminaux et permet de quantifier les phénomènes de sialylation et de phosphorylation, critère majeur pour garantir l’efficacité et l’innocuité des médicaments à base de protéine. La chimie C18 AX en mode mixte présente les avantages suivants : Séparation en phase inverse et par échange anionique pour une résolution optimale Technologie MaxPeak HPS (High Performance Surfaces), qui réduit les interactions entre les analytes et la surface de la colonne pour un rendement, une sensibilité et une reproductibilité améliorés Compatibilité avec les applications utilisant la spectrométrie de masse Utilisation adaptée pour plusieurs marquages Phase mobile concentrée de qualité MS facile à utiliser Étalon de glycane sialylé RapiFluor-MS pour test de performances
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More than 200 combinations of column configurations and chemistries, UPLC Columns combine faster separations with higher resolution and sensitivities by harnessing the full potential of small particles. All Waters UPLC Columns are designed, tested, and guaranteed for routine use in applications up to 18,000 psi (1241 bar).
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nanoACQUITY Columns and trap columns are the previous generation of columns for nano- and microflow LC-MS applications. They are being replaced by the new generation of ACQUITY UPLC M-Class columns: Higher pressure rating (15,000 psi/1,034 bar) enable higher flow rates and thus shorter run times and higher sample turnover. M-Class Columns are compatible with nanoACQUITY UPLC systems.
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Waters nano- and microflow LC-MS columns are specifically designed for low-dispersion nano LC systems. The selected stationary phases fully leverage the separation power of sub-2-µm particle technology. This delivers the efficiency and selectivity required for complex separations such as discovery of low abundance species, peptide mapping, protein identification, and biomarker discovery. Leverage the efficiency of sub-2-µm particle technology at high flow rates Stationary phases with a variety of characteristics suitable for biomolecule separations Easy interface with LC-MS systems
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Columns designed for reliable nano, capillary, and microscale UPLC separations Waters nano columns offer purposefully-designed hardware to meet the different demands of today's nanoflow LC and LC-MS separations. The UPLC Column delivers superior chromatographic resolution and fully leverages the separation power of small sub-2-µm particles. The selected stationary phases for nano-LC and trapping columns provide an advantage developing fast and efficient separations for complex peptide and protein separations and other sample limited analyses. ACQUITY UPLC M-Class Columns (rated for 15,000 psi [1,000 bar]) allow for faster separations and are compatible with the nanoACQUITY UPLC system. The iKey Separation Device is an enabling technology behind the ionKey/MS System. It eliminates the need for traditional fittings and greatly simplifies the microflow-LC user experience.
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