| Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green |
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| 作者姓名： | 梁勇 赵小红 李全民 崔凤灵 刘国光 |
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| 作者单位： | [1]Key Laboratory of Environmental Pollution Control Technology of Henan Province, College of Chemistry and Environmental Science, Henan Normal University, Xinxiang, Henan 453007, China [2]College of Chemistry and Environmental, South China Normal University, Guangzhou, Guangdong 510631, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Henan Province （No. 0511020500） and Innovation Project Foundation of University in Henan Province （No. 2001-513）. |
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| 摘 要： | The paper describes a novel method for copper preconcentration using microcrystalline triphenylmethane loaded with malachite green prior to the determination by the flame atomic absorption spectrometry （FAAS）. Under the optimum conditions, Cu（Ⅱ） can be totally adsorbed on the surface of microcrystalline triphenylmethane, and completely separated from Pb（Ⅱ）, Cd（Ⅱ）, Co（Ⅱ）, Cr（Ⅲ）, Ni（Ⅱ）, Mn（Ⅱ）, Fe（Ⅲ） and Al（Ⅲ） by controlling acidity. The preconcentration factor of this proposed method is 200. The recovery is in a range of 97.5%-105%. The relative standard deviation （RSD） is not beyond 3.0%. The proposed method has been successfully applied to the determination of trace copper in various water samples with satisfactory results.
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| 关 键 词： | 水样 痕量铜 预浓缩 微晶三苯甲烷 孔雀石绿 |
| 修稿时间： | 2006-06-232006-12-23 |
Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green |
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| LIANG Yong, ZHAO Xiao-Hong, LI Quan-Min, CUI Feng-Ling, LIU Guo-Guang.Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green[J].Chinese Journal of Chemistry,2007,25(4):521-526. |
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| Authors: | LIANG Yong ZHAO Xiao-Hong LI Quan-Min CUI Feng-Ling LIU Guo-Guang |
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| Institution: | 1.Key Laboratory of Environmental Pollution Control Technology of Henan Province, College of Chemistry and Environmental Science, Henan Normal University, Xinxiang, Henan 453007, China; 2. College of Chemistry and Environmental, South China Normal University, Guangzhou, Guangdong 510631, China |
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| Abstract: | The paper describes a novel method for copper preconcentration using microcrystalline triphenylmethane loaded with malachite green prior to the determination by the flame atomic absorption spectrometry (FAAS). Under the optimum conditions, Cu(II) can be totally adsorbed on the surface of microcrystalline triphenylmethane, and completely separated from Pb(II), Cd(II), Co(II), Cr(III), Ni(II), Mn(II), Fe(III) and Al(III) by controlling acidity. The preconcentration factor of this proposed method is 200. The recovery is in a range of 97.5%–105%. The relative standard deviation (RSD) is not beyond 3.0%. The proposed method has been successfully applied to the determination of trace copper in various water samples with satisfactory results. |
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| Keywords: | microcrystalline triphenylmethane malachite green preconcentration determination copper environmental water sample |
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