| 催化光度法测定天然水中微量碘化物 |
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| 引用本文： | 刘锐,蒋模华,刘汉初.催化光度法测定天然水中微量碘化物[J].环境工程,2000,18(6):46-47. |
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| 作者姓名： | 刘锐 蒋模华 刘汉初 |
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| 作者单位： | 常德市环境监测站,湖南,415003 |
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| 摘 要： | 在硫酸介质中 ,碘化物对亚硝酸氧化硫氰酸盐的反应具有显著的催化作用 ,使硫氰化铁络合物的生成量减少 ,导致溶液颜色变浅 ,据此测定微量碘化物的含量。方法的测定范围为 0～ 0 3μg/2 5mL ,检出限为 0 0 1μg/2 5mL ,用于测定天然水中微量碘化物 ,获得了满意的结果
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| 关 键 词： | 碘化物 天然水 催化光度法 |
| 修稿时间： | 2000-06-07 |
DETERMINATION OF TRACE AMOUNTS OF IODIDE IN NATIVE WATER BY CATALYTIC PHOTOMETRIC METHOD |
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| Liu Rui.DETERMINATION OF TRACE AMOUNTS OF IODIDE IN NATIVE WATER BY CATALYTIC PHOTOMETRIC METHOD[J].Environmental Engineering,2000,18(6):46-47. |
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| Authors: | Liu Rui |
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| Abstract: | The oxidation of thiocyanate by nitrous acid can be catalyzed by Iodide in sulfuric acid medium.The concentration of ferric thiocyanate complex is reduced so that its color shallowed.Based on this,a catalytic photometric method for the determination of trace iodide has been established.The measure range of the method is 0～0 3μg/25mL.The limit of detection is 0.01μg/25mL.The method has been used for the determination of iodide in native water and the results are satisfactory. |
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| Keywords: | Iodide native water and catalytic photometry |
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