DETERMINATION OF ALIPHATIC-ALDEHYDES C-1-C-4 IN WASTE-GAS BY HPLC

A simple and rapid method for the determination of aliphatic aldehydes (C-1 - C-4) in waste gas was developed. Sample collection and derivat ization are performed directly in a sorption tube containing Chromosor b P impregnated with 2,4 - dinitrophenylhydrazine and catalyst. This m ethods allows direct injection of a methanol extract of a sorption tub e into a chromatographic column. Detection limit of aldehydes is below 1 mg/m(3) for a 10 1 sample. The technique was used to measure aldehy de emissions from wood fired furnace.