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刘锡林, 贾小菊, 张伏龙. Ir(Ⅲ)-偶氮胂DBM-KIO4催化分光光度法测定微量铱[J]. 分析测试技术与仪器, 2004, (4): 241-243.
引用本文: 刘锡林, 贾小菊, 张伏龙. Ir(Ⅲ)-偶氮胂DBM-KIO4催化分光光度法测定微量铱[J]. 分析测试技术与仪器, 2004, (4): 241-243.
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LIU Xi-lin, JIA Xiao-ju, ZHANG Fu-long. Catalytic Spectrophotometric Determination of Ir(Ⅲ) by Decolorizing Reaction with Ir(Ⅲ)-KIO4-arsenazo-DBM[J]. Analysis and Testing Technology and Instruments, 2004, (4): 241-243.
Citation: LIU Xi-lin, JIA Xiao-ju, ZHANG Fu-long. Catalytic Spectrophotometric Determination of Ir(Ⅲ) by Decolorizing Reaction with Ir(Ⅲ)-KIO4-arsenazo-DBM[J]. Analysis and Testing Technology and Instruments, 2004, (4): 241-243.
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Ir(Ⅲ)-偶氮胂DBM-KIO4催化分光光度法测定微量铱

Catalytic Spectrophotometric Determination of Ir(Ⅲ) by Decolorizing Reaction with Ir(Ⅲ)-KIO4-arsenazo-DBM

    摘要
  • 摘要: 在h2SO4介质中,微量铱的存在对KIO4-偶氮胂DBM的褪色反应有明显的催化作用,探讨了该褪色反应的最佳条件及微量铱的测定方法,检出限为0.1μg/mL,铱含量在0.1～1.0μg/mL范围内符合比尔定律.

     

    Abstract: A spectrophotometric methed for the determination of Ir(Ⅲ) on the oxidative fading arsenazo-DBM with KIO4 in acid medium. the methed offers the advantages of simplicity,rapidity,and sensitivity. Beer's Law is obeyed from 0.1 to 1.0 μg Ir/ml and the determination limits is 0.1 μg Ir/ml. The catalytic Reaction occurs in water phase.

     

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