DERIVATIZATION AND CHROMATOGRAPHIC DETERMINATION OF ALDEHYDES IN GASEOUS AND AIR SAMPLES

Various aldehyde derivatives were used for the determination of volatile aldehydes in gaseous or air samples in order to investigate the behaviour of aldehydes in air and their contribution to air pollution. Grime derivatives of aldehyde are useful for gas chromatographic analysis because the reactions proceed under mild conditions and the derivatives give good separation. Aldehyde pentafluorobenzyloximes are especially superior to aldehyde 2,4-dinitrophenylhydrazones in volatility and sensitivity to GC detection. The technique was applied to the analysis of gaseous and air samples and a method for the determination of volatile aldehydes was developed. This review focuses primarily on the formation of aldehyde oximes, related reactions for GC analysis and other derivatization reactions for GC and HPLC analysis with selective detection.