| 铑(Ⅲ)-溴酸钾-二溴邻硝基偶氮胂催化分光光度法测定微量铑 |
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| 引用本文： | 寇明泽.铑(Ⅲ)-溴酸钾-二溴邻硝基偶氮胂催化分光光度法测定微量铑[J].甘肃联合大学学报(自然科学版),2012(4):47-48,76. |
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| 作者姓名： | 寇明泽 |
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| 作者单位： | 甘肃联合大学化工学院 |
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| 摘 要： | 以铑(Ⅲ)催化溴酸钾氧化二溴邻硝基偶氮胂的褪色反应,建立了一种在水相中直接测定微量铑的催化光度分析法.铑含量在0.0-20.0μg.L-1范围内符合比耳定律.用于铂-铑催化剂中铑的测定,结果令人满意.
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| 关 键 词： | 铑 二溴邻硝基偶氮胂 催化分光光度法 |
Discoloring Spectrophotomeric Determination of Rhodium(Ⅲ) by Rhodium(Ⅲ)-Potassium Bromate-Dibromo-o-nitro-Arsenazo |
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| KOU Ming-ze.Discoloring Spectrophotomeric Determination of Rhodium(Ⅲ) by Rhodium(Ⅲ)-Potassium Bromate-Dibromo-o-nitro-Arsenazo[J].Journal of Gansu Lianhe University :Natural Sciences,2012(4):47-48,76. |
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| Authors: | KOU Ming-ze |
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| Institution: | KOU Ming-ze(School of Chemistry Engineering,Gansu Lianhe University,Lanzhou 730000,China) |
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| Abstract: | A new discoloring spectrophotometric method for the determination of rhodium(Ⅲ) is established based on its catalytic effect on the oxidation of dibromo-o-nitro-Arsenazo in acid medium.Beer’s law is obyed in the concentration range of 0.0-20.0μg ·L-1.The method has been applied to the determination of trace amount of rhodium(Ⅲ) in platinum-rhodium catalyst,the results are satisfactory. |
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| Keywords: | Rhodium dibromo-o-nitro-arsenazo discoloring spectrophotometric |
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