孙霞,谭微,贾双琳,杨刚,周小林.微波消解―ICP―MS法测土壤和水系沉积物样品中的碘[J].贵州地质,2018,35(3):257-261 |
微波消解―ICP―MS法测土壤和水系沉积物样品中的碘 |
Determination of Iodine in Soil and Sediment Samples by Microwave Digestion and Inductively Coupled Plasma-Mass Spectrometry |
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DOI: |
中文关键词: 微波消解 ICP-MS 碘 土壤 水系沉积物 |
英文关键词:Microwave digestion ICP-MS Iodine Soil Sediment |
基金项目: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]。 |
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中文摘要: |
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0.012 μg/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。 |
英文摘要: |
In this paper, a method for accurate and precise determination of total iodine in soil and sediment samples by inductively coupled plasma mass spectrometry (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 substances 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 differences between the average value and the truth value were all less than 0.05, the recovery was 98.6% to 104.6%. |
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