Chromatography
Thermo Scientific Hypersil GOLD HILIC Columns For Retention of Highly Polar Compounds
Nov 10 2010
Hydrophilic interaction liquid chromatography (HILIC) is becoming an increasingly popular technique that offers complementary selectivity to reversed-phase. With the ability to retain highly polar and hydrophilic compounds, the new Thermo Scientific Hypersil GOLD HILIC range of columns has been developed to aid the analysis of compounds that are traditionally difficult to retain using conventional C18 columns. Available with 1.9, 3 and 5 μm particle sizes, Hypersil™ GOLD HILIC columns are ideal for applications within drug discovery, food testing and environmental analysis.
HILIC works by incorporating water in the highly organic mobile phase to form, an adsorbed water-rich layer on the polar stationary phase surface into which analyte molecules partition. Retention is governed by dipole-dipole interactions and hydrogen bonding mechanisms. Furthermore, the highly organic mobile phase contains low salt levels, making Hypersil GOLD HILIC columns ideal for use with electrospray mass spectroscopy.
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