摘要
介绍了用微波消解处理土壤和水系沉积物样品,用电感耦合等离子质谱仪(ICP-MS)快速高效测试碘的方法。方法的检出限为0. 012μg/g。所选的12个土壤和水系沉积物国家一级标准物质12次测定,除GBW07307a的RSD小于10%外,其余RSD值均小于5%,12次测试的平均值和标准值对数差绝对值均小于0. 05。方法加标回收率在98. 6%104. 6%之间。
In this paper, a method for accurate and precise determination of total iodine in soil and sediment samples by inductively coupled plasma mass speetrometry （ICP-MS） was introduced. The samples were dissolved by microwave digestion. The detection limit of this method is 0.012 μg/g. 12 national standard sub- stances had chosen to detect iodine for 12 times. The precision of the 12 national standard substances were all less than 5% except GBW07307a. the absolute value of logarithmic differenees between the average value and the truth value were all less than 0.05, the recovery was 98.6% to 104.6%.
作者
孙霞
谭微
贾双琳
杨刚
周小林
SUN Xia;TAN Wei;JIA Shuang-lin;YANG Gang;ZHOU Xiao-lin(Guizhou Central Laboratory of Geology and Mineral Resources,Guiyang 550018,Guizhou,China;Guiyang Supervision and Testing Center of Mineral Resources,Ministry of Land and Resources,Guiyang 550018,Guizhou,China;Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan 430074,Hubei,China)
出处
《贵州地质》
2018年第3期257-261,共5页
Guizhou Geology
基金
贵州省地质矿产勘查开发局地质科研项目[合同编号:黔地矿科合(2015)23号]
