微波消解-原子荧光光谱法同时测定人体血液中砷和汞  

Microwave Digestion-atomic Fluorescence Spectroscopy Simultaneous Determination of Arsenic and Mercury in Human Blood

作　　者：杨宝红 鄢中妮 熊福平 冉福林 谭昌玲 齐书洲 张凯 万传杰 YANG Baohong;YAN Zhongni;XIONG Fuping;RAN Fulin;TAN Changling;QI Shuzhou;ZHANG Kai;WAN Chuanjie(Hubei Key Laboratory of Resources and Eco-environment Geology(Hubei Geological Bureau),Wuhan 430034;Second Geological Brigade of Hubei Geological Bureau,Enshi 445000,China)

机构地区：[1]资源与生态环境地质湖北省重点实验室(湖北省地质局),湖北武汉430034 [2]湖北省地质局第二地质大队,湖北恩施445000

出　　处：《化工管理》2024年第8期69-71,89,共4页Chemical Engineering Management

基　　金：恩施州不同硒镉背景区硒镉等元素生态效应评价(项目编号:MSDZ202216)资助。

摘　　要：用微波消解-原子荧光光谱法同时测定人体血液中砷和汞,使用65%的硝酸5 mL微波消解,1∶1的盐酸2 mL提取,5%硫脲+5%抗坏血酸溶液1 mL预还原。实验结果表明该方法检出限为As 0.016μg/L;Hg 0.007μg/L;相对标准偏差为As:4.41%~4.65%;Hg:1.41%~2.08%(n=11),加标回收率砷:99%~107%,汞:97%~101%。该方法稳定性好、精密度高、操作简便,可用于人体血液中砷和汞的同时测定。Simultaneous determination of arsenic and mercury in human blood by microwave digestion-Atomic fluorescence spectroscopy,microwave digestion with 5mL 65%nitric acid,extraction with 2 mL 1:1 hydrochloric acid,and pre-reduction with 1 mL 5%thiourea+5%ascorbic acid solution.The results showed that the detection limit was As 0.016μg/L;HG 0.007μg/L;RSD was As:4.41%-4.65%;Hg:1.41%-2.08%(n=11).The recoveries of arsenic and mercury were 99%-107%and 97%-101%,respectively.The method has the advantages of good stability,high precision and easy operation,and can be used for the simultaneous determination of arsenic and mercury in human blood.

关 键 词：微波消解 原子荧光光谱法 人体血液 砷和汞 

分 类 号：O657.31[理学—分析化学]