| 催化动力学荧光法测定痕量甲醛 |
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| 引用本文： | 李国清,黄芳.催化动力学荧光法测定痕量甲醛[J].泉州师范学院学报,2010,28(2):49-51,69. |
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| 作者姓名： | 李国清 黄芳 |
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| 作者单位： | 泉州师范学院,化学与生命科学学院,福建,泉州,362000 |
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| 基金项目： | 福建省自然科学基金项目，福建省科技计划项目，泉州市科技计划项目 |
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| 摘 要： | 在稀硫酸介质中,甲醛对溴酸钾氧化中性红的反应具有较强的催化作用,使其荧光强度降低.据此,建立了催化动力学荧光法测定痕量甲醛的新方法.其检出限为6.59×10-8g.L-1,线性范围为0~0.128mg.L-1.该法简便、快速,可用于测定未知溶液中的甲醛.
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| 关 键 词： | 甲醛 催化动力学荧光法 溴酸钾 中性红 |
Catalytic Kinetic Spectrofluorimtric Determination of Trace Formaldehyde |
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| LI Guo-qing,HUANG Fang.Catalytic Kinetic Spectrofluorimtric Determination of Trace Formaldehyde[J].Journal of Quanzhou Normal College,2010,28(2):49-51,69. |
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| Authors: | LI Guo-qing HUANG Fang |
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| Institution: | LI Guo-qing,HUANG Fang(School of Chemistry , Life Sciences,Quanzhou Normal University,Fujian 362000,China) |
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| Abstract: | A catalytic spectrofluorimetric method is proposed for the determination of trace formaldehyde.It is based on the catalytic effect of formaldehyde for the oxidation of NR by potassium bromate in sulfuric acid medium.The detection limit for formaldehyde is 6.59×10-8 g·L-1,and the linear range of the determination is 0~0.128 mg·L-1.The method is simple and quick.The method is applied in determining trace formaldehyde from solution,obtaining a very satisfactory result. |
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| Keywords: | formaldehyde catalytic spectrofluorimetry potassium bromate NR |
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