采用HG-AFS结合XRF测定土壤中的砷  

Determination of arsenic in soils using HG-AFS and XRF

作　　者：王龙 任冬 武应凯 张廷忠[1] WANG Long;REN Dong;WU Ying-kai;ZHANG Ting-zhong(Zhangye Geo-mine survey instisute of non-ferrous metal geological exploration bureau ,Zhangye 734000,China)

机构地区：[1]甘肃省有色金属地质勘查局张掖矿产勘查院,甘肃张掖734000

出　　处：《世界有色金属》2019年第2期253-257,共5页World Nonferrous Metals

摘　　要：为了快速准确有效的分析土壤中砷的含量.更好地为环境管理服务,保障人民群众生活环境健康。采用氢化物发生-原子荧光光谱仪(HG-AFS)结合X荧光光谱仪(XRF)测定土壤中的砷,测定结果中AFS精密度(RSD)为2.3%～5.5%,XRF精密度(RSD)为3.5%～8.6%;AFS准确度(RE)为-2.3%～5.4%,XRF准确度(RE)为-3.9%～7.9%,方法检出限为0.018μg/g,其质量满足规范要求。与HJ 680-2013做方法比对,数据一致性好,可靠。其充分解决了土壤中砷含量在0.2μg/g～600μg/g范围内样品检测分析存在干扰的问题,可以作为土壤中砷检测的一种补充方法,具有一定的应用推广价值。In order to quickly, accurately and effectively analyze the content of arsenic in soil, better serve the environmental management and guarantee the people's living environment health. In this paper, HG-AFS and XRF were used to determine arsenic in soil. The results showed that the precision of AFS (RSD) was 2.3%~ 5.5%, XRF (RSD) was 3.5%~ 8.6%, the accuracy of AFS (RE) was - 2.3%~ 5.4%, XRF (RE) was - 3.9%~ 7.9%, and the detection limit was 0.018 ug/g, which met the quality specifications. Compared with HJ 680-2013, the method has good consistency and reliability. This paper fully solved the interfere problem of sample analysis in the range of 0.2ug/g ~ 600 ug/g of arsenic content in soil. It can be used as a supplementary method for arsenic detection in soil and has a certain application and popularization value.

关 键 词：环境 土壤 污染 HG-AFS XRF 砷 

分 类 号：X833[环境科学与工程—环境工程]