摘要
目前在锰矿冶炼过程中环保元素(如铊、砷、汞等)的检测受到越来越多的关注,而铊的生物毒性远高于砷、汞。锰矿中铊含量的检测为锰矿冶炼周边环境风险评估提供重要依据。采用盐酸、硝酸、氢氟酸、高氯酸四酸体系对样品进行消解,王水复溶,选择205 T1作为测定同位素,建立了电感耦合等离子体质谱法(ICP-MS)测定锰矿中铊的分析方法。测定结果表明:铊含量在0.01~50.00μg/L的范围内具有良好的线性关系,相关系数在0.9999以上,检出限为0.0038μg/g。按照实验方法测定锰矿样品中的铊,测定结果的相对标准偏差(RSD,n=11)为1.75%~7.91%,加标回收率在93.2%~103%之间。
At present,more and more attention has been paid to the detection of environmental protection elements such as thallium,arsenic and mercury in the manganese smelting waste.The biological toxicity of thallium is higher than arsenic and mercury.The detection of thallium content of manganese ore provides an important basis for the assessment of environmental risk around manganese ore smelting plant.The manganese ore is digested by hydrochloric acid,nitric acid,hydrofluoric acid and perchloric acid,and redissolved in aqua regia.205 Tl is selected as the isotope for the determination of thallium content of sample solution by Inductively Coupled Plasma Mass Spectrometry(ICP-MS)Method.The result shows that thallium content has a good linear relationship in the range of 0.01–50.00μg/L,the correlation coefficient is greater than 0.9999,and the detection limit is 0.0038μg/g.Thallium content of manganese ore is determined according to the experimental method,the relative standard deviation is 1.75%–7.91%,and the recovery rate is between 93.2%–103%.
作者
张征莲
唐碧玉
赖锦秋
施意华
古行乾
乔小芳
ZHANG Zhenglian;TANG Biyu;LAI Jinqiu;SHI Yihua;GU Xingqian;QIAO Xiaofang(China Nonferrous Metals(Guilin)Geology and Mining Co.,Ltd.,Guilin 541004,Guangxi,China)
出处
《矿产与地质》
2020年第5期1014-1017,共4页
Mineral Resources and Geology
关键词
铊
锰矿
电感耦合等离子体质谱法(ICP-MS)
thallium
manganese ore
Inductively Coupled Plasma Mass Spectrometry(ICP-MS)Method
作者简介
第一作者:张征莲(1991-),女,助理工程师,主要从事电感耦合等离子体质谱仪和电感耦合等离子体发射光谱仪的应用研究。E-mail:569078856@qq.com;通信作者:施意华(1974-),男,硕士,教授级高级工程师,主要研究方向为稀有稀散贵金属及元素形态分析测试研究。E-mail:syhua2000@163.com。
