【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1.0²0mg·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。更多还原

【Abstract】 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%.更多还原