【作者】 邵鹏； 郎爽； 范筱京； 张经华； 林金明；

【Author】 Peng Shao1,,Shuang Lang1,Xiaojing Fan1,Jinghua Zhang1,Jinming Lin2 1.Beijing Center for Physical and Chemical Analysis,Beijing 100089 2.Department of Chemistry,Tsinghua University,Beijing 100084

【机构】 北京市理化分析测试中心； 清华大学化学系；

【摘要】 对轮胎橡胶以二氯甲烷为提取溶剂,通过自动索氏提取,提取液经硅胶固相萃取小柱富集净化,用气相色谱-质谱法(GC-MS)对样品中6种邻苯二甲酸酯(PAEs)进行检测。该方法具有良好线性,相关系数R在0.9986~0.9999之间,检测限为31.4~718.2μg/kg,6种PAEs的平均回收率为82.6%~112.4%,相对标准偏差(RSD)范围为2.8%~8.6%。检测实际加标样品结果为DBP:223 mg/kg,BBP:245 mg/kg,DEHP:225 mg/kg,DNOP:225 mg/kg,DINP:1161 mg/kg,DIDP:822 mg/kg。该方法具有操作简单、灵敏度高、重现性好等特点,满足了国内外在轮胎橡塑中邻苯二甲酸酯的检测需求,为国家标准的制定提供了技术参考。更多还原

【Abstract】 Tire rubbers were extracted by automated soxhlet extractor with diethyl ether(Optima grade) as the solvent,and the extracts were enriched and purified by silica gel solid phase extraction,the determination of 6 phthalate acid esters(PAEs) in tire rubbers by gas chromatography-mass spectrometry(GC-MS) was developed.The correlation coefficients(R) of 6 PAEs were ranged from 0.9986 to 0.9999,and detection limits from 31.43 μg/kg to 718 μg/kg.The average recoveries of 6 PAEs in tire rubbers were ranged from 82.6% to 112.4%.In addition,the relative standard deviations(RSDs) were ranged from 2.8% to 8.6%.The determination results of added PAEs tire rubber sample were DBP: 223 mg/kg,BBP: 245 mg /kg,DEHP: 225 mg /kg,DNOP: 225 mg /kg,DINP: 1161 mg /kg,DIDP: 822 mg /kg.The method had the advantage of simplicity,sensitivity and repeatability,and met the request for testing of PAEs in tire rubbers at home and abroad,and provided the technical reference for formulation of a national standard.更多还原