岩矿测试2012，Vol.31Issue(2)：325-330,6.
质谱法测定大气颗粒物中多环芳烃的内标选择和质量控制
The Choice of Internal Standard and Quality Control for the Measurement of Polycyclic Aromatic Hydrocarbons in Airborne Particulates by Mass Spectrometry
摘要
Abstract
This paper reports a method to analyze as many as 18 polycyclic aromatic hydrocarbons (PAHs) in airborne participates by gas chromatography mass spectrometry (GC-MS) based on US EPA TO-13A standard. The selectivity of internal standards, the stability of data and the recovery rate of substitute standards are discussed. The internal standards were selected according to the correlations of response attenuation and response factors between internal standards and target compounds. The internal standard for BghiP, DBahA, IP and COR was dlo-PYL instead of dlo-AC, which was used in T0-13A. The stability of data and the recovery rates of substitutes of 365 samples for 7 days were studied. The instrument detection limit was 8 - 12 pg, the average error of target compounds were - 11.21% - 12. 12% , and relative standard deviation ( RSD, n =7) were 4. 12% - 14. 27%. The recovery rate of substitute standards ranged from 64. 35% to 127. 94% , the average recovery rate were from 76.95% to 79.71% with the RSD (n =365) from 7. 15% to 9. 66%. In this paper, the stability of data, the recovery rate of substitute standards, etc. All met the requirements of EPA. This method can be used for batch or continuous analysis of 18 PAHs in atmospheric particulates.关键词
大气颗粒物/多环芳烃/内标物/质量控制Key words
airborne particulates/ polycyclic aromatic hydrocarbons/ internal standard/ quality control分类
化学化工引用本文复制引用
刘金巍,安彩秀,王磊,王芸,祁春景,刘庆学..质谱法测定大气颗粒物中多环芳烃的内标选择和质量控制[J].岩矿测试,2012,31(2):325-330,6.基金项目
河北省地矿中心实验室资助项目(201103001) （201103001）
