Water Soluable Vitamin on Xtimate C18
Sample ColumnWelch XtimateTM C18，4.6×250mm，5μmMobile PhaseGradient methodWavelength360 nmTemperature40℃Flow Rate1 ml/minInjection Volume20 μl View PDF
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.
Consistency
Chromatography and sample prep are nowhere without reproducibility. We build consistency into everything that we do.
Recent News
Applications Info
Applications Info
Water Soluable Vitamin on Ultisil AQ-C18
Sample ColumnUltisil®AQ-C18, 4.6×250mm, 5μmMobile PhaseMobile Phase A: weigh 0.87g dipotassium phosphate, dipotassium phosphate 0.41g, dissolve with water and add 125 ml acetonitrile, dilu…
Applications Info
Vitamin D in Dairy Products on Topsil Silica
Blank ColumnWelch Topsil® silica（4.6×250mm，5μm) Mobile Phase Cyclohexane: n-hexane: isopropanol =4:4:92 Wavelength 264 nm Temperature35℃ Flow Rate…