水中邻苯二甲酸酯的固相萃取-气相色谱-质谱测定法  

Determination of Phthalates in Water by Solid Phase Extraction-Gas Chromatography-Mass Spectrometry

作　　者：迂君[1] 徐烨[2] 

机构地区：[1]沈阳市疾病预防控制中心理化科,辽宁沈阳110031 [2]东北大学理学院,辽宁沈阳110004

出　　处：《环境与健康杂志》2008年第11期1003-1005,共3页Journal of Environment and Health

摘　　要：目的建立水中邻苯二甲酸酯的固相萃取-气相色谱-质谱测定法。方法采用固相萃取法对水样进行提取富集,以10%甲醇-甲基叔丁基醚为洗脱溶剂,采用气相色谱-质谱法选择离子模式(SIM)对水中邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)及邻苯二甲酸二(2-乙基己基)酯(DEHP)进行定量分析。结果在0.00～10.00μg/ml范围内,该方法所得的回归方程线性关系良好,相关系数均>0.998,DMP、DEP、DBP、DEHP检出限分别为2.7、2.1、1.6、2.5 ng/L.,平均回收率为78.0%～102.5%,RSD为3.3%～7.8%。结论该方法溶剂使用量少,简单、快捷、准确,适用于水中邻苯二甲酸酯类物质含量的测定。Objective To establish a method for the determination of phthalates in water by solid phase extraction-gas chromatography-mass spectrometry （SPE-GC-MS）. Methods The water samples were extracted and enriched by solid phasse extraction, using 10% methanol-methyl tea-butyl ether as eluant,dimethylphthalate（DMP）, diethylphthalate（DEP）, dibutylphthalate （DBP） and diethylhexylphthalate （DEHP） were determined by gas chromatography-mass spectrometry with selected ion monitoring mode （SIM）. Results The concentration had a good linear range in the range of 0.00-10.00 ug/ml, the correlation coefficient was above 0.998. The detection limit of DMP, DEP, DBP and DEHP were 2.7, 2.1, 1.6 and 2.5 ng/L respectively, the average recovery rate and the RSD of the method were 78.0%-102.5% and 3.3%-7.8% respeetively. Conclusion This method, with small amount of solvent, is simple, fast, accurate and is applicable to the determinatiori of phthalates in water.

关 键 词：水 邻苯二甲酸酯 质谱法 色谱法 气相 

分 类 号：O657.7[理学—分析化学]