| 摘要: |
| 建立了以高锰酸钾作指示剂的可视化检测铜离子的分析方法，并探讨了反应机理.讨论了利用本体系测定铜离子的最佳条件，结果表明，在pH为9.62的BR缓冲溶液中，检测Cu2+的线性范围为5.0×10-8~1.0×10-6 mol/L，相关系数为r= 0.998 4.该方法检出限低，线性范围宽，方法简便，应用于环境水样中Cu2+检测，获得了较好的结果. |
| 关键词: 铜离子 高锰酸钾 维生素C 可视化 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目(21275047) |
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| Potassium permanganate for visual detection of copper ion |
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| Abstract: |
| A method that using potassium permanganate for visual detection of copper ion as indicator established and the reaction mechanism was discussed. The best condition for the determination of copper ion was studied. The results show that the copper ion detection in the range of 5.0×10-8~1.0×10-6 mol/L with the correlation coefficient of 0.998 4 in the BR under pH of 9.62 buffer solution medium. The method has the properties of simple, low detection limit, and wide linear range. It can be used to detect the content of Cu2+in real environmental water samples with satisfactory results. |
| Key words: copper ion potassium permanganate vitamin C optical detection |
