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 …
Welch Chromatography
What makes our chromatography solutions the best?
Purity
We are tenacious about UHP silica and bonded phases, so impurities won't impact your separations.
Chemistry
Our business has been built on a novel and honed chemistry. High Performance Chemistry.
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Chromatography and sample prep are nowhere without reproducibility. We build consistency into everything that we do.
Recent News
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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,…
Applications Info
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…