| 罗丹明 6G 褪色光度法测定氯酸根 |
| |
| 引用本文： | 刘文明,马卫兴,刘新河,许兴友. 罗丹明 6G 褪色光度法测定氯酸根[J]. 分析试验室, 1999, 18(3): 77-79 |
| |
| 作者姓名： | 刘文明 马卫兴 刘新河 许兴友 |
| |
| 作者单位： | 淮海工学院化工系,江苏连云港,222005 |
| |
| 基金项目： | 江苏省教委自然科学基金 |
| |
| 摘 要： | 提出了罗丹明６Ｇ褪色光度法测定微量氯酸根离子的新方法，研究了氯酸根在盐酸介质中氧化罗丹明６Ｇ使其褪色的最佳条件。最大吸收波长λｍａｘ在５２５ｎｍ处，其表观摩尔吸光系数ε为１．２２×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，氯酸根的质量浓度在０￣６μｇ／２５ｍＬ范围内符合比耳定律。已用于化学试剂中氯酸根的测定，结果满意。
|
| 关 键 词： | 罗丹明6G 氯酸根 褪色光度法 |
| 文章编号： | 1000-0720(1999)03-077-03 |
Photometric Determination of Microamounts of Chloranion by the Oxidation-Decoloration of Rhodamine 6G |
| |
| LIU Wen-ming,MA Wei-xing,LIU Xin-he,XU Xing-you. Photometric Determination of Microamounts of Chloranion by the Oxidation-Decoloration of Rhodamine 6G[J]. Chinese Journal of Analysis Laboratory, 1999, 18(3): 77-79 |
| |
| Authors: | LIU Wen-ming MA Wei-xing LIU Xin-he XU Xing-you |
| |
| Abstract: | new photometric method for the determination of microamounts of chloranion is proposed in this paper.The optimum conditions for the oxidation of rhodamine 6G by chloranion in HCl medium were studied.A decrease of absorbance of rhodamine 6G resulted from its oxidation by chloranion and a linear relationship is established between the decrease of absorbance and chloranion concentration of 06g/25mL.The molar absorptivity is 1.22105Lmol-1cm-1.The proposed method has been applied to the determination of microamounts of chloranion in synthetic samples and chemical reagents with satisfactory results. |
| |
| Keywords: | Rhodamine 6G chloranion decoloration spectrophotometry |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
