色谱Issue(8)：878-884,7.DOI:10.3724/SP.J.1123.2015.04010
气相色谱-负化学电离源质谱法测定鱼油中16种多氯联苯
Determination of 16 polychlorinated biphenyls in fish oil by gas chromatography-negative ion chemical ionization-mass spectrometry
摘要
Abstract
An analytical method for the simultaneous determination of 16 polychlorinated biphenyls( PCBs)in fish oil was developed. PCBs were extracted from fish oil with n-hexane, purified by sulfuric acid and determined by using gas chromatography-negative ion chemical ionization-mass spectrometry( GC-NCI-MS)in selected ion-monitoring( SIM)mode. A good linear relationship( r>0. 99)was observed with the PCBs concentrations from 0. 01 μg/L to 10μg/L,and the limits of quantification(LOQ,S/N=10)were between 3 pg/g and 67 pg/g for different kinds of PCBs. The average recoveries ranged from 62. 3% to 121. 8% with the relative standard deviations( RSDs,n=3)smaller than 12%. Compared with the traditional pre-treat-ment of multiple material solid phase extraction,this new method is simple,rapid and less organic solvent usage. Meanwhile the method has good selectivity and sensitivity,and it is suit-able for the determination of multiple trace PCBs in fish oil.关键词
气相色谱-负化学电离源质谱/共平面多氯联苯/指示性多氯联苯/鱼油Key words
gas chromatography-negative ion mode of chemical ionization-mass spectrometry ( GC-NCI-MS )/coplanar polychlorinated biphenyls ( co-PCBs )/indicator polychlorinated biphenyls/fish oil分类
化学化工引用本文复制引用
王丽,李书书,张展,王守林,李磊..气相色谱-负化学电离源质谱法测定鱼油中16种多氯联苯[J].色谱,2015,(8):878-884,7.基金项目
江苏省高校优势学科建设工程项目（ PAPD2010）． （）
