| Simultaneous Determination of Samarium and Gadolinium by a Automated Stopped-flow Analyzer |
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| 作者姓名： | Yang Yi Cai Ruxiu and Zeng Yun' e |
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| 作者单位： | Department of Chemistry，Wuhan University，Wuhan |
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| 基金项目： | Supported by the National Natural Science Fundation of China |
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| 摘 要： | The present paper contains the reaction mechanism of the rare earth complex with 2-(2-arsenophenylazo)-7-(2, 6-dichloro-4-fluoro-phenylazo)- 1, 8-dihydroxynaphthalene-3, 6-disulfonic acid (DCF-arsenazo) studied preliminarily with a fully automated stopped-flow analyzer. A method with a high sensitivity and selectivity is proposed for the simultaneous determination of samarium and gadolinium based on the differential kinetic reaction of the rare earth complex with DCF-arsenazo. Sm and Gd in their concentrated oxides were determined with the relative errors less than 6%.
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Simultaneous Determination of Samarium and Gadolinium by a Automated Stopped-flow Analyzer |
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| Yang Yi,Cai Ruxiu and Zeng Yun'''' e.Simultaneous Determination of Samarium and Gadolinium by a Automated Stopped-flow Analyzer[J].Chemical Research in Chinese University,1991(2). |
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| Authors: | Yang Yi Cai Ruxiu and Zeng Yun' e |
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| Abstract: | The present paper contains the reaction mechanism of the rare earth complex with 2-(2-arsenophenylazo)-7-(2, 6-dichloro-4-fluoro-phenylazo)- 1, 8-dihydroxynaphthalene-3, 6-disulfonic acid (DCF-arsenazo) studied preliminarily with a fully automated stopped-flow analyzer. A method with a high sensitivity and selectivity is proposed for the simultaneous determination of samarium and gadolinium based on the differential kinetic reaction of the rare earth complex with DCF-arsenazo. Sm and Gd in their concentrated oxides were determined with the relative errors less than 6%. |
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| Keywords: | Kinetic Samarium Gadolinium Stopped-flow |
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