| 溴酸钾氧化溴百里酚蓝催化光度法测定痕量锰 |
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| 引用本文： | 李艳辉.溴酸钾氧化溴百里酚蓝催化光度法测定痕量锰[J].淮海工学院学报,2001(3). |
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| 作者姓名： | 李艳辉 |
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| 作者单位： | 连云港化工高等专科学校化工系 |
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| 摘 要： | 研究了在磷酸介质中，锰（Ⅱ）催化溴酸钾氧化溴百里酚蓝的褪色反应．建立了测定痕量锰 的新方法．方法检出限２．２７×１０－６ｇ／Ｌ线性范围０．５～５．５μｇ／２５ｍＬ方法简便。适用于铝合金、发 样、米粉、水中锰的测定．
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| 关 键 词： | 催化光度法 锰 溴百里酚蓝 |
Photometric Determination of Trace of Manganese by Its Catalytic Oxidation of Bromothymol Blue with Potassium Bromate |
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| Li Yanhui.Photometric Determination of Trace of Manganese by Its Catalytic Oxidation of Bromothymol Blue with Potassium Bromate[J].Journal of Huaihai Institute of Technology:Natural Sciences Edition,2001(3). |
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| Authors: | Li Yanhui |
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| Affiliation: | Chemical Engineering Dept. Lianyungang College of Chemical Technology Lianyungang Jiangsu 222001 |
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| Abstract: | This paper studies a new catalytic photometric method for determination of trace of manganese. The method is based on the oxidation of bromothymol blue by potassium bromate leading to a color-fading of bromothymol blue. The limit of detection for manganese is 2.27 x 10 -6g/L. A linear relationship holds between the intensity of color-fading and concentration of manganese over the range of 0.5~5.5g/ 25 mL.The method is quite convenient in operation and has been applied to the determination of manganese in Aluminium alloys,hair.rice flour and water. |
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| Keywords: | catalytic photometry manganese bromothymol blue |
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