PCBs is one major category of Persistent Organic Pollutants(POPs),and total 209 Congeners is restrictive indicator for IFOS five-star authentication.A method had been developed for determination of total 209 Congeners in fish oil by isotope dilution HRGC/HRMS.After fish oil samples were extracted with hexane,the extraction solution is concentrated,purified,and subjected to isotope labeling.The target substance is determined using HRGC-HRMS.The method detection limit is 1.4 ng/g,and minimum quantitative detection limit is 5.4 ng/g.
关键词
鱼油/二噁英/总多氯联苯/高分辨气相色谱/高分辨质谱/同位素内标/持久性有机污染物
Key words
fish oil/dioxin/total Congeners/high-resolution gas chromatography-high-resolution mass spectrometry/isotope internal standard/persisent organic pollutants
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