title: [Determination of short-chain chlorinated paraffins in ambient air using high-volume sampling combined with high resolutimi gas chromatography-electron capture negative ion-low resolution mass spectrometry].
abstract: 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 (R2>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 µg, respectively. The method detection limit (MDL) for SCCPs was 0. 34 ng/m3 (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.
authors.forename: Loimeng
authors.initials: L
authors.lastname: Shi
authors.forename: Yuan
authors.initials: Y
authors.lastname: Gao
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Hou
authors.forename: Haijun
authors.initials: H
authors.lastname: Zhang
authors.forename: Yichi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jiping
authors.initials: J
authors.lastname: Chen