Application of Multicapillary Column to High Speed GC Separation of Industrial Chemicals

Two multicapillary coluumns(SE 30 and Carbowax 20M)were used for high speed GC separation of positional isomers of industrial chemicals The performances of the two multicapillary columns were also evaluated,such as the effects of carrier velocity,column temperature and sample capacity Two typical explosive isomers(DNT and TNT)were well separated on SE 30 multicapillary column,while some important chemicals(e g xylenes,xylenols)were separated on Carbowax 20M multicapillary column at high speed The multimulticapillary column shows the feature of fast analysis,relatively lower column temperature and larger sample capacity