Spectrophotometric Determination   of Trace Bromide with Catalyst

徐春彦; 高艳阳

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Spectrophotometric Determination of Trace Bromide with Catalyst

更新时间：2026-09-14

- Spectrophotometric Determination of Trace Bromide with Catalyst
- 催化光度法测定微量溴离子
- Issue 2, (1999)
- 作者机构：
  
  华北工学院化学工程系
- 作者简介：
- 基金信息：
- DOI：
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- Published：1999
- 稿件说明：
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徐春彦, 高艳阳. Spectrophotometric Determination of Trace Bromide with Catalyst[J]. 1999, (2).
DOI：

徐春彦, 高艳阳. Spectrophotometric Determination of Trace Bromide with Catalyst[J]. 1999, (2). DOI：

摘要

目的研究测定溴离子的催化动力学分析方法．方法应用光度分析法对溴酸钾氧化二苯胺磺酸钠反应的动力学条件进行研究．结果在磷酸介质中，溴离子抑制溴酸钾氧化二苯胺磺酸钠，以此建立了测定微量溴离子的新催化光度法．结论本法具有高灵敏度和选择性，测定溴离子量的线性范围为（０．５～５．６）μｍ／ｍＬ，用于测定难溶化合物ＣｕＢｒ的溶度积．

Abstract

Aim To study the determination of trace bromide by the method of catalytic kinetic determination. Methods Spectrophotometry was used to study the optimum conditions influencing the rate of the oxidation of sodium diphenylamine sulphonic acidsalt by potassium bromate. Results A new spectrophotometric method with catalyst for the determination of trace Br - has been developed. The method is based on the inhibitory effect of Br - on the oxidation of sodium diphenylamine sulphonic acidsalt by potassium bromate in a solution of diluted H 3PO 4. Conclusion This method behaves with high sensitivity and high selectivity. The linear range of determination is (0.5-5.6) μg/mL for bromine ion. The method has been used to determine solution product of CuBr with satisfactory results.

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