超声萃取-GC/MS法测定电子电气产品中十溴二苯醚和四种邻苯二甲酸酯含量

Determination of Decabromodiphenyl ether and Phthalates in Electrical and Electronic Products by Ultrasonic Extraction-GC/MS Method

以甲苯作为萃取溶剂,采用超声萃取-GC/MS法测定电子电气产品中十溴二苯醚和四种邻苯二甲酸酯。结果表明:该方法能同时有效提取十溴二苯醚和邻苯二甲酸酯,十溴二苯醚和四种邻苯二甲酸酯(DBP,BBP,DEHP,DIBP)方法检出限分别为50,10,6,10,8 mg/kg,加标平均回收率分别为99.6%和90.7%~94.7%,RSD均小于10%。该方法简单快速,准确可靠,适用于批量样品测定。

Taking toluene as an extractor, decabromodiphenyl ether and four kinds of phthalates in electrical and electronic products are determined by GC/MS method with ultrasonic extraction. Result show that the method could be extracted decabromodiphenyl ether and phthalates effectively. The MDL of decabromodiphenyl ether and 4 phthalates(DBP, BBP, DEHP, DIBP) are 50, 10, 6, 10, and 8 mg/kg respectively. The average recovery rate of decabromodiphenyl ether and 4 phthalates(DBP, BBP, DEHP, DIBP) are 99.6 % and 90.7 %~94.7 %. RSD value is less than 10 %. The method is simple, rapid and high accuracy, and suitable for the batch sample determination.