Determination of Trace Halogenated Hydrocarbons in Air by Canister Collecting-Preconcentration-GC/MS
16 halogenated hydrocarbons in air were simultaneously determined by canister collecting-precon-centration-GC/MS.By optimizing the test conditions,16 trace halogenated hydrocarbons were separated within 30 min.The target objects had good linearity in the range of 40 pmol/mol to 200 pmol/mol and 5 pmol/mol to 100 pmol/mol.The method detection limits were from 4 pmol/mol to 55 pmol/mol.The RSDs of 6 measure-ments of standard gas ranged from 1.0％to 7.2％.The recoveries of blank samples were from 72.5％to 125％.
Halogenated hydrocarbonPreconcentrationGC-MSAmbient air
NETL
NSTL
万方数据
维普
