气相色谱法测定固体废物中的多氯联苯  

Measurement of Polychlorinated Biphenyls (PCBs) in Solid Waste by Gas Chromatography

作　　者：范艳翔 陈扬[2] 何万双[3] 冯钦忠[2] 尹连庆[1] 姚高扬 张丽军[1,2] 魏石豪 

机构地区：[1]华北电力大学 [2]中国科学院北京综合研究中心 [3]中国人民解放军66259部队 [4]东华理工大学

出　　处：《环境科学与技术》2017年第5期131-136,共6页Environmental Science & Technology

基　　金：环保公益项目:含汞废物处置过程污染特征及污染风险控制技术研究(201509054);国家环境保护标准制修订项目:固体废物多氯联苯混合物的测定-气相色谱法(1092)

摘　　要：GC/ECD是目前测量固体废物中多氯联苯总量的最常用的方法。利用索氏提取法提取固体废物中的多氯联苯,采用浓硫酸净化,气相色谱法进行分析。根据峰型和保留时间,实现多氯联苯混合物总量的定性分析;根据特征峰面积实现PCBs的定量分析,方法的检出限是2.73μg/kg,方法的定量限是9.11μg/kg,方法的回收率在91.6%~96.4%之间,方法标准偏差是4.92%~5.8%之间。该方法适用于固体废物中多氯联苯的测定。GC/ECD method for the measurement of total polychlorinated biphenyls（PCBs）in solid waste has been widely used presently. Soxhlet extraction method was used to extract the PCBs in the solid waste. Sulfuric acid was used for purification and gas chromatography for analyzing. According to the peak and the retention time,it realized the qualitative analysis of the total mixture of PCBs. According to the characteristics of the peak area of PCBs,it realized the qualitative analysis,with the detection limit and quantitative limit respectively as 2.73 μg/kg and 9.11 μg/kg,methods of recovery between 91.6% ~96.4% and the method of standard deviation between 4.92% ~5.8%. This method is suitable for the determination of PCBS in solid waste.

关 键 词：多氯联苯 气相色谱 固体废物 索氏提取 

分 类 号：X830.2[环境科学与工程—环境工程]