DETERMINATION OF LOW-MOLECULAR-MASS CARBONYL COMPOUNDS OF MAINSTREAM SMOKE BY HPLC

The joint of smoking machine was redesigned,and 2,4-dinitrophenylhydrazine in acidic acetonitrile solution was used to absorb formaldehyde,acetaldehyde,acrolein,acetone,propionaldehyde,crotonaldehyde,methyl ethyl ketone and butyraldehyde in mainstream smoke,and formed 2,4-dinitrophenylhydrazones,which were determined by high performance of liquid chromatography using UV detector at 360nm.The lowest detection levels of method were 0.54—1.65ng·μl~(-1),and RSD were 6.22%—12.34%(n=6).Some brands of cigarretts were determined and the results were content.