Selective Removal of Carbonyl Compounds in Gas Chromatography by the Use of New Subtractor Column

Abstract

A subtractor column for aldehydes and ketones in gas chromatography was proposed. Crude acrylhydrazide, without troublesome purification, was used for the coating material. The column showed a stronger affinity for carbonyl compounds than the porous polymer containing hydrazide groups reported previously. Alcohols, hydrocarbons, ethers, and esters were not subtracted by this column. Concentration of the liquid phase and column temperature affected the subtraction of carbonyl compounds and the column life.