气相色谱-质谱法测定电子电气产品材料中多环芳烃

本文建立了采用气相色谱-质谱联用检测电子电气产品材料中多环芳烃的方法。以丙酮-正己烷(1+1)为提取溶剂,利用自动索氏提取仪提取电子电气产品材料中多环芳烃,正己烷-二氯甲烷(3+2)混合液淋洗硅胶小柱净化,气相色谱-质谱联用仪检测,该方法检测限在0.2mg/kg,加标回收率在59%～99%之间,相对标准偏差(RSD)小于5%,线性范围在0.1mg/L～100mg/L,相关系数(r)大于0.999。实验结果表明,该方法简便、可靠,能满足电子电气产品材料中多环芳烃的检测要求。

Determination of polycyclic aromatic hydrocarbons in Material of Electronic products by GC-MS method

A confirmatory method was developed for the determination of polyeyelic aromatic hydrocarbons in Material of Electronic products by GC-MS. Samples were extracted by using a solvent mixture of acetone and n-hexane （1＋1） in Soxlet＇s Extraction and Purified with the silica gel column by washing a solvent mixture of n-hexane and dichloromethane （3 ＋2）. The detection limits of method were 0.2mg/kg. The average recoveries were in the range of 59% - 99%, and the relative standard deviations （RSDs） were less than 5%. The standard curves for polycyclic aromatic hydrocarbons was in the range of 0. 1mg/L - 100mg/L.The method was simple, credible, and meet the test requirement of polycyclic aromatic hydrocarbons in electronic products.