中文摘要：

本文建立了一种橡皮擦中5种邻苯二甲酸酯增塑剂的气相色谱-质谱检测方法。采用乙酸乙酯加热搅拌的方法提取目标物,选择离子模式检测,外标法定量。优化的前处理和测定条件下,5种目标物的平均回收率为81.18%～117.92%,相对标准偏差在1.14%～5.57%之间。通过该方法对国内市场上8种橡皮擦样品进行检测,结果5种样品检出邻苯二甲酸二（2-乙基）己酯,含量超过0.1%。

英文摘要：

Gas chromatography-mass spectrometry was used to determine five phthalate acid esters plasticizers in eraser.The samples were extracted with heating ethyl acetate and analyzed by external standard method under selected ion monitoring mode.Under the optimal conditions of extraction and determination,the average recoveries of five phthalate acid esters were ranged from 81.18% to 117.92%,and the relative standard deviations were ranged from 1.14%to 5.57%.The levels of phthalate acid esters in eight kinds of erasers were investigated by this method,and the excess di-（2-ethylhexyl）phthalate（〉0.1%）was observed in five samples.