| 基于十二烷基苯磺酸钠增敏效应电化学方法检测苏丹红Ⅰ |
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| 引用本文： | 瞿万云,杨春海,黄文胜.基于十二烷基苯磺酸钠增敏效应电化学方法检测苏丹红Ⅰ[J].应用化学,2009,26(9):1065-1069. |
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| 作者姓名： | 瞿万云 杨春海 黄文胜 |
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| 作者单位： | (湖北民族学院化学与环境工程学院 恩施 445000) |
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| 基金项目： | 湖北省教育厅优秀中青年人才 |
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| 摘 要： | 采用线性扫描法、连续循环伏安法和计时库仑法研究了苏丹红Ⅰ在碳糊电极（CPE）上的电化学氧化过程，在痕量阴离子表面活性剂十二烷基苯磺酸钠（SDBS）存在下苏丹红Ⅰ的氧化峰电流得到最大增敏。苏丹红Ⅰ的浓度在2.0×10-7~ 1.5×10-5mol/L范围内，其氧化峰电流与浓度呈现出良好的线性关系。在开路条件下富集180 s后，苏丹红Ⅰ的检出限为6.0×10-8mol/L。该方法适用于辣椒制品及番茄酱等食品中苏丹红Ⅰ的测定
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| 关 键 词： | 苏丹红燃料 表面活性剂 电化学测定 食品分析 |
| 收稿时间： | 2008-09-02 |
| 修稿时间： | 2008-12-11 |
Electrochemical Determination of Sudan I Based on Enhancement Effect of Sodium Dodecyl Benzene Sulfonate |
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| QU Wan-Yun,YANG Chun-Hai,HUANG Wen-Sheng.Electrochemical Determination of Sudan I Based on Enhancement Effect of Sodium Dodecyl Benzene Sulfonate[J].Chinese Journal of Applied Chemistry,2009,26(9):1065-1069. |
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| Authors: | QU Wan-Yun YANG Chun-Hai HUANG Wen-Sheng |
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| Institution: | (School of Chemical and Environmental Engineering,Hubei Institute for Nationalities,Enshi 445000) |
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| Abstract: | The electrochemical behaviors of sudanⅠat carbon paste electrode(CPE) was studied by linear sweep voltammetry(LSV), successive cyclic voltammograms and chronocoulometry. The electrochemical responses of sudanⅠwere greatly enhanced in the presence of trace the anionic surfactant sodium doddecyl benzene sulfonic(SDBS) .In the range of 2.0×10-7~ 1.5×10-5 mol/L, the oxidation peak current was linear with sudanⅠconcentration and a low detection limit of 6.0×10-8mol/L was obtained for 180s accumulation at open circuit. This method suitable for the analysis of sudanⅠin the hot pepper product ,ketchup food and so on. |
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| Keywords: | Sudan dyes Surfactants Electrochemical determination Food analysis |
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