| 共沉淀分离富集-ICP-MS测定天然卤水中的痕量铅和镉 |
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| 引用本文： | 张启云,安国荣,赵玉卿,曹晓武. 共沉淀分离富集-ICP-MS测定天然卤水中的痕量铅和镉[J]. 光谱实验室, 2012, 29(3): 1899-1901 |
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| 作者姓名： | 张启云 安国荣 赵玉卿 曹晓武 |
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| 作者单位： | 1. 青海省地质矿产测试应用中心 西宁市盐湖巷15号 810008
2. 青海省地质矿产勘查开发局 西宁市 810000 |
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| 摘 要： | 在天然卤水中加入适量的铜(Ⅱ),在pH 9.5的溶液中2-巯基苯并噻唑与铜(Ⅱ)所生成的沉淀作为载体铅和镉同时共沉淀,分离、富集后用ICP-MS测定,Pb和Cd加标回收率分别为96.0%和104.0%,测定精密度RSD在0.8%—3.0%之间,方法简便、快速、实用。
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| 关 键 词： | 天然卤水 共沉淀分离 电感耦合等离子体-质谱法 铅 镉 |
Determination of Trace Lead and Cadmium in Natural Brine by ICP-MS with Co-Precipitation Separation and Enrichment |
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| ZHANG Qi-Yun , AN Guo-Rong , ZHAO Yu-Qing , CAO Xiao-Wu. Determination of Trace Lead and Cadmium in Natural Brine by ICP-MS with Co-Precipitation Separation and Enrichment[J]. Chinese Journal of Spectroscopy Laboratory, 2012, 29(3): 1899-1901 |
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| Authors: | ZHANG Qi-Yun AN Guo-Rong ZHAO Yu-Qing CAO Xiao-Wu |
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| Affiliation: | ZHANG Qi-Yun AN Guo-Rong ZHAO Yu-Qing CAO Xiao-Wu a(Qinghai Institute of Analysis and Applications of Rack Mines,Xining 810008,P.R.China)a(Qinghai Bureau of Geology and Mineral Exploration and Development,Xining 810000,P.R.China) |
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| Abstract: | Adding an appropriate amount of Cu(Ⅱ) in the natural brine,Pb and Cd in natural brine were co-precipitated by the precipitate of Cu(Ⅱ) chelating with 2-mercaptobenzothiazole in the solution(pH=9.5),then determine by ICP-MS after separation and enrichment.The recoveries of Pb and Cd were respectively 96.0% and 104.0% with RSD of 0.8%—3.0%.The method is simple,fast and practical. |
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| Keywords: | Natural Brine Co-Precipitation Separation ICP-MS Lead Cadmium |
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