Trimethylamine in environment air is concentrated to deactivated SUMMA canister by three-grade cold trap,then analysed by GC-MS.The operation of the method is easy,and no pre-procession.The maximal injection-volume is...Trimethylamine in environment air is concentrated to deactivated SUMMA canister by three-grade cold trap,then analysed by GC-MS.The operation of the method is easy,and no pre-procession.The maximal injection-volume is up to 2L.The analysis method is adopted to the SIM method of GC-MS.The precision、sensitivity and accuracy of the method is good,the MDL of the method is 1.6×10-2mg/m3.展开更多
文摘Trimethylamine in environment air is concentrated to deactivated SUMMA canister by three-grade cold trap,then analysed by GC-MS.The operation of the method is easy,and no pre-procession.The maximal injection-volume is up to 2L.The analysis method is adopted to the SIM method of GC-MS.The precision、sensitivity and accuracy of the method is good,the MDL of the method is 1.6×10-2mg/m3.
