Welch Chromatography

What makes our chromatography solutions the best?


We are tenacious about UHP silica and bonded phases, so impurities won't impact your separations.


Our business has been built on a novel and honed chemistry. High Performance Chemistry.


Chromatography and sample prep are nowhere without reproducibility. We build consistency into everything that we do.

Recent News

Solvent Effect

Concept In general, we regard “solvent effect” as the phenomenon of chromatographic peak deformation when the strength of the sample solvent is greater than that of the mobile phase. Sometimes the …

A More Efficient Chromatography Mode-MMC

MMC Overview Mixed-mode chromatography(MMC) optimized the structure of the functional ligand, combining two or more interaction modes to enhance affinity and selectivity to the target protein,…

10-DABⅢ on Ultisil XB-C18

Test solution -20ul ColumnWelch Ultisil XB-C18(4.6×150mm,5um) Detector230nmTemperature35℃Flow Rate1.0 mL/minInjection Volume10 μL Mobile Phase TimeWater(%)Meth…

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