GC-MS测定电子电器产品中8种邻苯二甲酸酯

Determination of phthalate with GC-MS in electrical and electronic production

目的：建立一个快速、简便、行之有效的连续测定电子、电器产品中多种邻苯二甲酸酯的GC-MS检测方案。方法：参考并针对EPA8061方案,免去硅胶柱或SPE柱净化,氮吹扫浓缩后,采用索氏提取、旋转蒸发浓缩的易推广设备,二氯甲烷定容上机检测。结果：方法的线性范围0.5～3.0μg/m l;线性回归系数r^2=0.9999,δ=0.0636（n=10）,6δ=0.382;加标回收率97%～103%;RSD≈5%。结论：经对多批次的各种电子、电器产品及玩具中8种邻苯二甲酸酯分析测定,得到预期的满意结果。

Objective：The extraction procedures were developed for electrical and electronic products.Methods：The samples were extracted in soxhlet tubes for 6 hours.The dichloromethane extracted solution was concentrated to 10ml quantificationally and its phthalate content was determined by GC-MS.Results：The results were satisfied that the RSD approached 5%,the recovery was 97%～103%,the linearity range was 0.5～3.0 μg/ml and the correlation coefficient was 0.9999（r^2）.Conclusion：The proposed method is accurate and highly active.It can be used to analyze electrical and electronic products.