The use of an oxygen jet in the spectrochemical determination of trace amounts of Pb,Tl, Ga,Cu and Sn in some silicate rocks and minerals |
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| Affiliation: | 1. School of Earth Resources, China University of Geosciences, Wuhan, 430074, China;2. Guangxi Zhuang Autonomous Region Geophysical Survey Institute, Liuzhou, China;1. Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;2. CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;4. State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China;5. Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350108, China;1. School of Earth Resources, China University of Geosciences, Wuhan, Hubei Province 430074, China;2. School of Computer Science, China University of Geosciences, Wuhan, Hubei Province 430078, China;3. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China;4. School of Earth Sciences and Engineering, Sun Yat-Sen University, Zhuhai, Guangdong Province 519000, China |
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| Abstract: | A modified speotrochemical technique of determining low concentrations of the volatile elements, Pb, Tl, Ga, Cu and Sn is described. A comparatively large amount of sample is arced in a constant stream of oxygen delivered through a Stallwood jet. Detection limits of Tl and Sn are lowered sufficiently to determine these elements in most intermediate and acid igneous rocks. Ranges of values observed for all five elements in granitic rocks from Australia and South Africa and their co-existing minerals are presented. |
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