Thermo Fisher, 060146, Dionex™ AminoTrap Columns

Dionex™ AminoTrap™ Column, 3 x 30 mm is used as an in-line pretreatment trap for monosaccharide analysis by HPAE-PAD, retaining interfering amino acids until the monosaccharides have eluted. The 3 mm ID × 30 mm microbore column is installed before a compatible carbohydrate analytical column and can be used with the Dionex CarboPac PA20 format. This configuration is useful for samples such as glycoprotein hydrolysates or food-derived samples that contain amino acids such as lysine, because the trap reduces amino-acid interference and helps limit fouling of the working electrode. The column uses PEEK construction, supports pH 0–14, and is rated to 3000 psi (207 bar), with an operating temperature range of 4–60 °C. Its resin uses a crosslinked ethylvinylbenzene/divinylbenzene substrate with quaternary-ammonium functionality and is compatible with common HPLC solvents and water. The compact 3 × 30 mm format is specifically intended as a trap column rather than a primary analytical separation column.