Determination of short. chain chlorinated paraffins in ambient air using high. volume sampling combined with high resolution gas chromatography-electron capture negative ion-low resolution mass spectrometry

被引：3
作者：
Shi Leimeng [1 ,2 ]
Gao Yuan [2 ]
Hou Xiaohong [1 ]
Zhang Haijun [2 ]
Zhang Yichi [2 ]
Chen Jiping [1 ,2 ]
机构：
[1] Shenyang Pharmaceut Univ, Shenyang 110016, Liaoning, Peoples R China
[2] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
来源：
CHINESE JOURNAL OF CHROMATOGRAPHY | 2016年 / 34卷 / 02期
基金：
中国国家自然科学基金;
关键词：
high resolution gas chromatography-electron capture negative ion-low resolution mass spectrometry (HRGC-ECNI-LRMS); high-volume sampling; short-chain chlorinated paraffins (SCCPs); air;
D O I：
10.3724/SP.J.1123.2015.08032
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An analytical method for quantifying short. chain chlorinated paraffins (SCCPs) in ambient air using high. volume sampling combined with high resolution gas chromatography. electron capture negative ion. low resolution mass spectrometry (HRGC-ECNI-LRMS) was developed. An acidified silica gel column and a basic alumina column were used to optimize the cleanup procedures. The results showed a good linearity (R-2 > 0.99) between the total response factors and the degree of chlorination of SCCPs in the content range of 58.1% - 63.3%. The limits of detection (S/N = 3) and the limits of quantification (S/N = 10) were 4.2 and 12 pg, respectively. The method detection limit (MDL) for SCCPs was 0.34 ng/m(3) (n = 7). The recoveries of SCCPs in air samples were in the range of 81.9% to 94.2%. It is demonstrated that the method is suitable for the quantitative analysis of SCCPs in air samples.
引用
收藏
页码：202 / 208
页数：7
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