Use of a packed programmed-temperature vaporizer injector in the solvent elimination mode for the determination of fatty acid methyl esters by gas chromatography

Abstract

It is shown that when using a programmed-temperature vaporizer as the injection device for the gas chromatographic determination of fatty acid methyl esters in the solvent elimination mode, losses of medium-chain solutes during the solvent elimination step can be avoided by packing the glass liner of the injector with materials providing adequate retention characteristics. Silanized glass-wool proved to be a good material for this purpose.. Other parameters such as solvent elimination temperature, nature of the solvent and solute vaporization temperature were also studied in order to achieve optimum injection conditions.