| 紫外分光光度法测定微量溴酸根研究 |
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| 引用本文： | 陈红,阳泽平,陈朝晖. 紫外分光光度法测定微量溴酸根研究[J]. 成都大学学报(自然科学版), 2007, 26(3): 193-194,198 |
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| 作者姓名： | 陈红 阳泽平 陈朝晖 |
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| 作者单位： | 西南大学,荣昌校区,重庆,荣昌,402460;西南大学,荣昌校区,重庆,荣昌,402460;西南大学,荣昌校区,重庆,荣昌,402460 |
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| 摘 要： | 研究了在硫酸介质中,碘化钾还原溴酸根离子的最佳反应条件,选择的最大吸收波长为350 nm,表观摩尔吸光系数为2.24×105L.mol-1.cm-1,溴酸根离子在0.5~6μg/10 mL范围内符合郎伯—比尔定律,检出限为0.25μg/10 mL,该法应用于化学试剂中微量溴酸根离子的研究,获得了满意的结果.
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| 关 键 词： | 碘化钾 溴酸根离子 紫外分光光度法 硫酸 |
| 文章编号： | 1004-5422（2007）03-0193-03 |
| 修稿时间： | 2007-04-20 |
Study on Ultraviolet Spectrophotometric Determination of Microbromate |
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| CHEN Hong,YANG Zeping,CHEN Zhaohui. Study on Ultraviolet Spectrophotometric Determination of Microbromate[J]. Journal of Chengdu University (Natural Science), 2007, 26(3): 193-194,198 |
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| Authors: | CHEN Hong YANG Zeping CHEN Zhaohui |
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| Affiliation: | Rongchang Branch, Southwest University, Rongchang 402460, China |
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| Abstract: | The optimum reaction conditions for deoxidizing bromate in a sulfuric acid medium by kalium iodide were studied.350 nm was selected in this paper.The molar absorptivity was 2.24×105 L·mol-1·cm-1 and the linear range was 0.5～6 μg/10 mL of bromate.The bound of checking and measurement was 0.25 μg/10 mL of BrO3-.The method was applied to determinate micro amount of bromate in chemical reagents with satisfactory results. |
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| Keywords: | kalium iodide bromate ultraviolet spectrophotometric sulfuric acid |
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