摘要
采用真空罐采样,三级冷阱预浓缩仪处理样品,气相色谱-质谱法测定空气中的三甲胺.结果表明,检出限为0.005 mg/m3,相对标准偏差为4.1%,加标回收率为92.0%~108%,能达到国家标准要求.该方法操作简单,测定准确可靠,可用于环境空气中三甲胺的测定.
With Sampling by vacuum canister and processing samples by three stage cold trap,we determined trimethylamine in the air samples by gas chromatography-mass spectrometry. The results show that the detection limit was 0.005 mg/m3,the relative standard deviation is 4.1%,and the recovery rate was 92.0%~108%,which can meet the requirements of Emission Standards for Odor Pollutants. This method is simple,accurate and reliable,which can be used for determination of trimethylamine in ambient air.
出处
《河南科学》
2015年第5期718-721,共4页
Henan Science
关键词
三甲胺
GC-MS
罐采样
三级冷阱
trimethylamine
GC-MS
canister sampling
three stage cold trap
