固相萃取-气相质谱法测定水中邻苯二甲酸酯类化合物  

Determination of seven phthalates in water by solid phase extraction-gas chromatography-mass spectrometry

作　　者：沈登辉[1] 汤峰[2] 张兵[3] 陆蓓蓓[1] 单晓梅[1,3] 

机构地区：[1]安徽医科大学公共卫生学院,合肥230032 [2]合肥供水集团有限公司,合肥230011 [3]安徽省疾病预防控制中心,合肥230601

出　　处：《中国卫生检验杂志》2013年第3期532-534,共3页Chinese Journal of Health Laboratory Technology

基　　金：安徽省自然科学基金(11040606M216);安徽省预防医学与公共卫生科研项目(2011Y0103)

摘　　要：目的:建立同时测定水中DMP、DEP、DIBP、DBP、BBP、DBEP、DEHP 7种邻苯二甲酸酯的检测方法,并用于水源水及生活饮用水中邻苯二甲酸酯的污染监测。方法:水样经C18小柱萃取富集,GC-MS检测,以SCAN模式定性,SIM模式外标法定量。结果:7种目标化合物在0.01 mg/L～10.0 mg/L试验浓度范围内具有良好的线性关系,其相关系数均在0.9985以上,方法最低检测质量浓度在1.5 ng/L～9.4 ng/L范围,方法平均回收率在84.0%～114.2%,RSD均小于5%。结论:该法简单、灵敏、准确,适用于实际水源及饮用水中邻苯二甲酸酯类化合物的监测。Objective：To establish an analytical method for determination of seven phthalates in water by gas chromatography - mass spectrometry （ GC - MS）. Methods： The water samples were extracted by acetic ether and dichloromethane, seperation and detection were performed by GC - MS. Qualitative analysis was carried out with SCAN mode, and quantitative analysis was done by external standard method under SIM mode. Results： The linear correlation coefficients of seven phthalates in the range of 0.01 mg/L - 10.0 mg/L were all over 0. 9985. The lowest detection limit of the method was between 1.5 ng/L - 9.4 ng/L, and the recoveries ranged from 84.0% to 114.2%. Relative standard deviations （RSDs） were all less than 5%. Conclusion： This method is simple,sensitive and accurate, it is suitable for the determination of the phthalates compounds in source water and drinking water.

关 键 词：水 邻苯二甲酸酯 气相色谱-质谱 

分 类 号：O657.63[理学—分析化学]