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中国无机分析化学:2012,2(2):14-16
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紫外分光光度法检测水中微量溴酸盐的含量
(1.中国药科大学 分析化学教研室,江苏 南京 210009;2.1 中国药科大学 分析化学教研室,江苏 南京 210009;3.2 江苏正大天晴制药有限公司,江苏 南京 210038)
Detection of Trace Bromate in Water by UV Spectrophotometry
(1.Changsha Research Institute of Mining and Metallurgy, Changsha, Hunan 410012, China;2.Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China;3.1.Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China;4.2.R&D Center, Chia-tai Tianqing Pharmaceutical Co., Ltd., Nanjing 210038, China)
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投稿时间:2011-12-12    修订日期:2012-03-29
中文摘要: 基于BrO3?与I?在酸性介质中发生氧化还原反应形成具有紫外吸收的I3?的性质,采用了紫外分光光度法测定水体中微量溴酸盐含量,方法加标回收率在98%~102%之间,相对标准偏差RSD为1.7%,线性相关系数为0.9991,检测限为4.0 μg/L,能满足现有标准的检测要求。
Abstract:A simple ultraviolet-spectrophotometric method was developed for the detection of bromate in water samples. Bromate reacts with iodide in acidic media to produce tri-iodide which has a UV absorbance at 288 nm and thus can be monitored spectrophotometrically. The recovery of bromate detection by UV spectrophotometry was 98%~102%, and the relative standard deviation was 1.7% (n=9). The calibration equation for bromate analysis has a good linearity with regression coefficient of 0.9991. The detection of limit for bromate was 4.0 μg/L, showing that the method can meet the testing requirement.
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基金项目:国家环保公益性行业科研专项项目(200809016)、江苏省环境工程重点实验室开放基金(KF2009008)。
引用文本:
刘 贞,崔 艳,胡志军,严拯宇,陈建秋.紫外分光光度法检测水中微量溴酸盐的含量[J].中国无机分析化学,2012,2(2):14-16.
LIU Zhen,CUI Yan,HU Zhijun,YAN Zhenyu,CHEN Jianqiu.Detection of Trace Bromate in Water by UV Spectrophotometry[J].Chinese Journal of Inorganic Analytical Chemistry,2012,2(2):14-16.

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