河南科学
河南科學
하남과학
HENAN SCIENCE
2015年
5期
718-721
,共4页
三甲胺%GC-MS%罐采样%三级冷阱
三甲胺%GC-MS%罐採樣%三級冷阱
삼갑알%GC-MS%관채양%삼급랭정
trimethylamine%GC-MS%canister sampling%three stage cold trap
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.
採用真空罐採樣，三級冷阱預濃縮儀處理樣品，氣相色譜-質譜法測定空氣中的三甲胺.結果錶明，檢齣限為0.005 mg/m3，相對標準偏差為4.1%，加標迴收率為92.0%~108%，能達到國傢標準要求.該方法操作簡單，測定準確可靠，可用于環境空氣中三甲胺的測定.
채용진공관채양，삼급랭정예농축의처리양품，기상색보-질보법측정공기중적삼갑알.결과표명，검출한위0.005 mg/m3，상대표준편차위4.1%，가표회수솔위92.0%~108%，능체도국가표준요구.해방법조작간단，측정준학가고，가용우배경공기중삼갑알적측정.
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.
