| 催化动力学光度法测定井水中痕量锰 |
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| 引用本文： | 柳玉英,王发刚,孟波,周丽.催化动力学光度法测定井水中痕量锰[J].分析试验室,2001,20(1):24-25. |
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| 作者姓名： | 柳玉英 王发刚 孟波 周丽 |
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| 作者单位： | 山东工程学院化工系, |
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| 摘 要： | 研究了在 NH3· H2 O- NH4 Cl介质中锰催化过氧化氢氧化苋菜红的褪色反应及其动力学条件 ,测定了反应级数和表观活化能 ,建立了测定痕量锰的新方法。该方法的检出限为 2 .7× 1 0 -4 μg/m L Mn,线性范围为 0～ 2 .4μg/2 5m LMn。用于测定井水中痕量 Mn,与原子吸收法的测定结果一致。
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| 关 键 词： | 催化光度法 苋菜红 锰 井水 痕量分析 |
| 文章编号： | 1000-0720(2001)01-0024-02 |
Determination of trace Manganese by Catalytic Kinetic Spectrophotometry |
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| LIU Yu-ying,WANG Fa-gang,MENG Bo,ZHOU Li.Determination of trace Manganese by Catalytic Kinetic Spectrophotometry[J].Chinese Journal of Analysis Laboratory,2001,20(1):24-25. |
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| Authors: | LIU Yu-ying WANG Fa-gang MENG Bo ZHOU Li |
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| Abstract: | Decolourisation of amaranth by oxidation of hydrogen peroxide in ammonium muriate medium using manganese as catalyst was investigated. The reaction order and the apparent activation energy were determined. A new method based on this for determination of Mn was set up with detection limit of 2.7×10-10 g/mL Mn and linear range of 0～2.4 μg/25 mL.The method was used to determine trace Mn in well water in good agreement with the results determined by AAS. |
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| Keywords: | Catalytic spectrophotometry Amaranth ManganD |
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