| 纤痕量钒的催化光度法测定研究 |
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| 引用本文： | 王淑志. 纤痕量钒的催化光度法测定研究[J]. 价值工程, 2011, 30(6): 57-58 |
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| 作者姓名： | 王淑志 |
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| 作者单位： | 临沂职业学院,临沂,276017 |
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| 摘 要： | 在磷酸介质中,钒(V)强烈的催化溴酸钾氧化钙指示剂褪色的指示反应,研究了该催化反应的最佳实验条件,建立了测定钒的新方法。方法的测定范围是0～100pg/ml,检出限为2.36pg/ml。催化反应的表观活化能为44.91kJ/mol,表观速率常数为1.45×10-3 s-1。方法用于水样中痕量钒的测定,结果满意。
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| 关 键 词： | 钒(V) 催化光度法 钙指示剂 |
Research on Spectrophotometric Determination of Nanotrace Vanadium by Catalytic Photometry |
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| Wang Shuzhi. Research on Spectrophotometric Determination of Nanotrace Vanadium by Catalytic Photometry[J]. Value Engineering, 2011, 30(6): 57-58 |
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| Authors: | Wang Shuzhi |
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| Affiliation: | Wang Shuzhi(Linyi Vocational College,Linyi 276017,China) |
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| Abstract: | A new catalytic kinetic spectrotmetic method for the determination of nanotrace vanadium based on index reaction between potassium bromate and Calmagite（R）in H3PO4 medium has been established.The optimum conditions had been investigated.The calibration curves are obtained over the range 0～100pg/ml of vanadium and detection limit was 2.36 pg/ml.The apparent activation energy of this catalytic reaction was found to be 44.91kJ/mol and the apparent rate constant of this catalytic reaction was found to be 1.45×10-3 s-1.The method has been applied to determination of vanadium in water samples with satisfactory results. |
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| Keywords: | vanadium(V) catalytic spectrophotometry calmagite(R) |
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