纸品中多氯联苯的气相色谱法测定  

Determination of polychlorinated biphenyls in paper products by gas chromatograph

作　　者：杨左军[1] 王成云[1] 顾浩飞[1] 徐嵘[1] 

机构地区：[1]深圳出入境检验检疫局,广东深圳518045

出　　处：《中华纸业》2011年第4期56-59,共4页China Pulp & Paper Industry

基　　金：全国造纸工业标准化技术委员会项目(20079240-T-607)

摘　　要：建立了一种纸品中多氯联苯的气相色谱分析方法,该方法利用碱溶液对纸中的干扰物进行破坏,用C18固相萃取柱和浓硫酸进行净化,采用GC-ECD对萃取液进行分析。该方法线性范围广,检测限低,加标回收率为95.30%～100.10%,精密度实验RSD为1.79%～3.30%,完全可以满足纸品中多氯联苯检测的需要。A method was established to determine the content of polychlorinated biphenyls （PCBs） in paper products by using gas chromatograph.The disruptors in papers were destroyed with alkaline solution to obtain a transparent and clean solution.Then the solution was purified by C18 solid phase extraction column and concentrated sulfuric acid.The extraction solution at last was analyzed by using gas chromatograph coupled with ECD detector.This method has a rather wide linear range and quite low detection limits.The recovery varied from 95.30% to 100.10% while the RSD changed from 1.79% to 3.30%.This method could completely satisfy the demand on the determination of PCBs in paper products.

关 键 词：多氯联苯 纸 GC-ECD 

分 类 号：TS77[轻工技术与工程—制浆造纸工程] O657.63[理学—分析化学]