恒温蒸发-ICP-AES法测量地下水中痕量Pb、Cd  

Determination of Trace Pb and Cd in Groundwater by ICP-AES Method with Constant Temperature Evaporation

作　　者：王鹏 张春红[2] 方雅琴 WANG Peng;ZHANG Chun-hong;FANG Ya-qin(Hubei Geological Research Laboratory,Hubei Wuhan 430034;Hubei Provincial Hydrogeology and Engineering Geology Brigade,Hubei Wuhan 430034;Hubei Geological Research Laboratory,Hubei Wuhan 430034,China)

机构地区：[1]湖北省地质实验测试中心,湖北武汉430034 [2]湖北省水文地质工程地质大队,湖北武汉430034

出　　处：《广州化工》2021年第17期131-132,156,共3页GuangZhou Chemical Industry

摘　　要：测量地下水中痕量Pb、Cd的含量,利用恒温蒸发法,并试验了恒温蒸发的最佳温度和恒温蒸发富集倍数,优化ICP-AES的测量参数,选择合适的谱线,用ICP-AES测定Pb、Cd的相对标准偏差(RSD)小于5%,加标回收率为95%-105%,可使Pb的检出限为2.0μg/L,Cd的检出限为0.2μg/L,均满足于地下水监测网运行维护规范(DZ/T 0307-2017),可广泛用于环保领域地下水的Pb、Cd的分析检测工作,既满足测定需求,又节约了经济投入。The content of trace Pb and Cd in groundwater was measured.The optimum temperature and enrichment multiple of constant temperature evaporation were tested by using constant temperature evaporation method.The measurement parameters of ICP-AES were optimized,and the appropriate spectral lines were selected.The detection limits of Pb and Cd were 2.0μg/L and 0.2μg/L respectively,both of which met the operation and maintenance standards of groundwater monitoring network(DZ/T 0307-2017).These results can be widely used in the analysis and detection of Pb and Cd in groundwater in the field of environmental protection,which not only met the determination requirements,but also saved the economic investment.

关 键 词：恒温蒸发法 地下水 ICP-AES 检出限 

分 类 号：O661.1[理学—分析化学]