气相色谱-质谱法测定洗涤用品中6种邻苯二甲酸酯  

GC-MS Determination of 6 Kinds of Phthalates in Washing Supplies

作　　者：徐善浩[1,2] 邬蓓蕾[1,2] 袁丽凤[1,2] 林振兴[1,2] 

机构地区：[1]宁波出入境检验检疫局技术中心,宁波315012 [2]浙江省石油化工产品质量与安全检测技术研究重点实验室,宁波315012

出　　处：《理化检验（化学分册）》2016年第3期271-274,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：国家质检总局科技计划项目(2013IK303);宁波市社会发展科研项目(2012C50049)

摘　　要：建立了测定洗涤用品中6种邻苯二甲酸酯的气相色谱-质谱法。样品经乙酸乙酯超声提取5min,提取液在HP-5MS毛细管色谱柱上分离,质谱分析中采用电子轰击离子源和选择离子监测模式,外标法定量。6种邻苯二甲酸酯的线性范围为1.0~20mg·L^(-1),方法的检出限(3S/N)均小于1.0mg·kg^(-1);样品中6种邻苯二甲酸酯的加标回收率在85.6%~113%之间,测定值的相对标准偏差(n=6)在2.2%~5.8%之间。A method of GC-MS was developed for the determination of 6kinds of phthalates in washing supplies.The sample was extracted with ethyl acetate by ultrasonic for 5 min and then the extract solution was separated on a HP-5MS capillary chromatographic column.EI and SIM were adopted in MS.The linearity ranges of6 kinds of phthalates were 1.0-20 mg·L^（-1） with detection limits（3S/N）less than 1.0 mg·kg^（-1）.Recoveries obtained by standard addition method ranged from 85.6% to 113% with RSDs（n=6）in the range of 2.2%-5.8%.

关 键 词：气相色谱-质谱法 邻苯二甲酸酯 洗涤用品 

分 类 号：O657.63[理学—分析化学]