气相色谱-质谱法测定沉积物中的有机氯和多氯联苯  

Determination of Organochlorine Pesticides and Polychlorinated Biphenyls in Sediments by Gas Chromatography-Mass Spectrometric Method

作　　者：高翔云[1] 杨敏娜[1] 刘秋香[1] 

机构地区：[1]江苏省地质调查研究院,江苏南京210018

出　　处：《环境监测管理与技术》2015年第3期48-51,共4页The Administration and Technique of Environmental Monitoring

基　　金：国土资源公益性行业专项基金资助项目(201111021)

摘　　要：采用加速溶剂萃取法提取沉积物中的有机氯和多氯联苯,提取液用凝胶色谱法净化后用气相色谱-质谱法测定。方法在5.00μg/L^200μg/L范围内线性良好,当取样量为10.0 g时,方法检出限为0.03μg/kg^0.37μg/kg,空白样品2个质量比水平的加标回收率为70.8%~121%,测定结果的RSD为2.7%~11.5%。用该方法测定实际样品,结果 12个抽检的沉积物样品中多氯联苯均未检出,9个样品中有机氯检出。An method for determination of organochlorine pesticides（OCPs）and polychlorinated biphenyls （PCBs）in sediments was established by using accelerated solvent extraction（ASE）,followed by GPC clean-up and gas chromatography-mass spectrometry.The results demonstrated that the linear is good in the 5.00 μg /L ~200 μg /L,recovery was tested by addition of the mixed standards at two different concentration levels,and the results of recovery were found in the range of 70.8% ~1 21 %,the relative standard deviation （RSD）were ranged from 2.7% to 1 1 .5%.Detection limits of the method for OCPs and PCBs were in the range of 0.03 μg /kg ~0.37 μg /kg.Actual samples were measured by current method,and the results showed that PCBs were not detected in the 1 2 sediment samples,but OCPs were detected in 9 of these samples.

关 键 词：有机氯 多氯联苯 加速溶剂萃取 凝胶色谱 气相色谱 -质谱法 沉积物 

分 类 号：O657.63[理学—分析化学]