| 用靛蓝胭脂红-H_2O_2流动注射化学发光法测定水样中的铜(Ⅱ) |
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| 引用本文： | 潘玉珍,;汪东,;何云飞.用靛蓝胭脂红-H_2O_2流动注射化学发光法测定水样中的铜(Ⅱ)[J].化学研究,2014(5):488-491. |
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| 作者姓名： | 潘玉珍 ;汪东 ;何云飞 |
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| 作者单位： | [1]大连理工大学化学学院,辽宁大连116024; [2]中国兵器银光集团甘肃银光聚银化工有限公司,甘肃白银730900 |
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| 摘 要： | 在Na2CO3-NaHCO3缓冲溶液中,铜(Ⅱ)对H2O2氧化靛蓝胭脂红的反应具有明显的催化作用.基于此,结合流动注射技术,建立了测定铜(Ⅱ)的化学发光新方法;研究了影响化学发光强度的各种因素.结果表明,在最佳试验条件下,铜(Ⅱ)浓度在1.0×10-8"1.0×10-5 mol·L-1范围内与发光强度呈线性关系,检出限为4.1×10-10 mol·L-1.将该方法用于水样中铜(Ⅱ)的测定,结果满意.
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| 关 键 词： | 靛蓝胭脂红 H2O2 化学发光法 铜(Ⅱ) 测定 |
Determination of Cu（Ⅱ）in aqueous solution by indigo carmine-H2 O2 flow injection chemiluminescence method |
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| PAN Yuzhen;WANG Dong;HE Yunfei.Determination of Cu（Ⅱ）in aqueous solution by indigo carmine-H2 O2 flow injection chemiluminescence method[J].Chemical Research,2014(5):488-491. |
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| Authors: | PAN Yuzhen;WANG Dong;HE Yunfei |
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| Institution: | PAN Yuzhen, WANG Dong, HE Yunfei (1. College of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China ; 2. Gansu Yinguang Juyin Chemical Industry Co., Ltd, CNGC Yinguang Group, Baiyin 730900, Gansu, China) |
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| Abstract: | A novel flow injection chemiluminescence method for the determination of copper （Ⅱ）was established based on its obvious catalytic effect on the oxidation reaction of indigo carmine with H 2 O 2 in Na2 CO 3-NaHCO 3 buffer solution.Various factors influencing the chemi-luminescence intensity of the reaction system were investigated.Under the optimized condi-tions,it was found that the linear range for the determination of copper （Ⅱ）is from 1.0 × 10 -8 mol·L-1 to 1.0 × 10 -5 mol ·L-1 ,and the detection limit is 4.1 × 10 -1 0 mol ·L-1 .It means that the present method can be well applied to the determination of copper （Ⅱ）in water samples. |
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| Keywords: | indigo carmine H2O2 chemiluminescence method copper （ II ） determination |
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