| 流动注射催化动力学光度法测定碘离子 |
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| 引用本文： | 黄进,黄正文,曾永刚,张新申.流动注射催化动力学光度法测定碘离子[J].化学研究与应用,2010,22(1). |
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| 作者姓名： | 黄进 黄正文 曾永刚 张新申 |
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| 作者单位： | 1. 成都大学城乡建设学院,四川,成都,610106
2. 四川大学轻纺与食品学院,四川,成都,610065 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： |
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| 关 键 词： | 流动注射 催化 靛蓝胭脂红 碘离子 |
Study on determination of iodide by flow-injection catalytic kinetic spectrophotometry |
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| HUANG Jin,HUANG Zheng-wen,Zeng Yong-gang,ZHANG Xin-shen.Study on determination of iodide by flow-injection catalytic kinetic spectrophotometry[J].Chemical Research and Application,2010,22(1). |
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| Authors: | HUANG Jin HUANG Zheng-wen Zeng Yong-gang ZHANG Xin-shen |
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| Abstract: | Based on catalysis of I- on the decolor reaction between potassium bromate and indigo carmine in the acid medium,and combined with flow injection analysis,a new flow-injection catalytic kinetic spectrophotometric method was found for determination of iodide in sample.The experimental results show that the determination is carried out at temperature of 80℃ and the concentration of H_2SO_4,KBrO_3,and indigo carmine is 1.2 mol/L,1.8×10~(-2) mol/L and 1.0×10~(-4) mol/L respectively,the linear range for the method is 0.50～1.8 mg/L.The detection limit is 0.0022 mg/L.The relative standard deviation is 1.92%.The proposed method was applied to the determination of iodide in troche successfully.The recovery was between 99.2% and 103.6%. |
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| Keywords: | flow-injection catalysis indigo carmine iodide |
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