| 快速程序升温-石墨炉原子吸收光谱法测定地质样品中痕量镉 |
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| 引用本文： | 吴峥,牟乃仓,王龙山,张飞鸽,高登峰,王光照.快速程序升温-石墨炉原子吸收光谱法测定地质样品中痕量镉[J].岩矿测试,2011,30(2):186-189. |
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| 作者姓名： | 吴峥 牟乃仓 王龙山 张飞鸽 高登峰 王光照 |
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| 作者单位： | 国土资源部西安矿产资源监督检测中心,陕西,西安,710054 |
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| 基金项目： | 国家地质实验测试中心基本科研业务费项目资助(2009CSJ04) |
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| 摘 要： | 建立了快速程序升温-石墨炉原子吸收光谱测定地质样品中痕量镉的分析方法.样品用硝酸-氢氟酸-高氯酸进行前处理,为提高分析效率,改进了石墨炉升温程序,省去了常规方法中的灰化步骤,使测定镉的程序升温时间由常规的90～100 s降至24 s,工作效率显著提高.方法检出限为0.011 μg/g,加标回收率为93.5%～106.0...
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| 关 键 词： | 镉 地质样品 石墨炉原子吸收光谱法 快速程序升温 |
| 收稿时间： | 2010/5/11 0:00:00 |
| 修稿时间： | 2010/9/18 0:00:00 |
Determination of Trace Cadmium in Geological Samples by Rapid Temperature Programming-Graphite Furnace Atomic Absorption Spectrometry |
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| WU Zheng,MU Nai-cang,WANG Long-shan,ZHANG Fei-ge,GAO Deng-feng and WANG Guang-zhao.Determination of Trace Cadmium in Geological Samples by Rapid Temperature Programming-Graphite Furnace Atomic Absorption Spectrometry[J].Rock and Mineral Analysis,2011,30(2):186-189. |
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| Authors: | WU Zheng MU Nai-cang WANG Long-shan ZHANG Fei-ge GAO Deng-feng and WANG Guang-zhao |
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| Institution: | Xi'an Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resource, Xi'an 710054, China;Xi'an Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resource, Xi'an 710054, China;Xi'an Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resource, Xi'an 710054, China;Xi'an Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resource, Xi'an 710054, China;Xi'an Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resource, Xi'an 710054, China;Xi'an Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resource, Xi'an 710054, China |
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| Abstract: | A method was established to determine trace cadmium in geological samples by rapid temperature programming-graphite furnace atomic absorption spectrometry.In order to enhance the analytical efficiency,temperature program of graphite furnace atomization was improved by omitting the ashing step,which resulted in shortening the analysis period from 90-100 s to 24 s.The detection limit of the method was 0.011 μg/g for Cd and the recovery was 93.5%-106.0%.The method has been applied to the determination of trace Cd in 1∶200 000 geochemical exploration samples and multi-purpose regional geochemical survey samples with satisfactory results. |
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| Keywords: | cadmium geological samples graphite furnace atomic absorption spectrometry rapid temperature programming |
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