不同前处理方法对GC-MS法测定水中多种SVOCs效率的影响  

Effect of Different Pretreatment Methods on Determination Efficiency of SVOCs in Water by GC-MS

作　　者：董军 武法伟 刘文 董淑娟 刘梦 袁鹏辉 孟焕梅[1] 

机构地区：[1]山东省地矿工程勘察院,山东济南250014 [2]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《环境监测管理与技术》2017年第6期50-53,共4页The Administration and Technique of Environmental Monitoring

基　　金：山东省2015年度31个省级地质勘查基金资助项目(SDZS-2015-GTT01)

摘　　要：通过对比液液萃取法、大孔吸附树脂法、固相萃取膜法、动态活性炭吸附法和固相萃取小柱法的试验效能,最终选择固相萃取小柱法作为测定水中7大类27种SVOCs的前处理方法,并对其进一步优化。试验表明,该方法在10.0μg/L^500μg/L范围内线性良好,方法检出限为0.003 1μg/L^0.03μg/L,空白加标样的回收率为70.9%~93.8%,RSD≤11.2%。By comparing the test effectiveness of liquid-liquid extraction,macroporous resin adsorption,membrane extraction,dynamic activated carbon adsorption and SPE,SPE was finally chosen as the pretreatment method for determining 27 kinds in 7 categories of SVOCs,and the test conditions were further optimized. Experiment results showed that this method had good linearity in the range of 10. 0 μg/L ~ 500 μg/L,the detection limits were 0. 003 1 μg/L ~ 0. 03 μg/L,RSD≤11. 2%,the recoveries ranged from 70. 9% ~ 93. 8%.

关 键 词：半挥发性有机污染物 固相萃取 气相色谱质谱联用法 水质 

分 类 号：O657.63[理学—分析化学]