| 纳米金-二氧化钛纳米针修饰电极用于氯霉素检测 |
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| 引用本文： | 辛欣,魏南南,陆天虹,杜江燕.纳米金-二氧化钛纳米针修饰电极用于氯霉素检测[J].应用化学,2011,28(2):240-244. |
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| 作者姓名： | 辛欣 魏南南 陆天虹 杜江燕 |
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| 作者单位： | (江苏省生物功能材料重点实验室，南京师范大学化学与环境科学学院 南京 210046) |
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| 基金项目： | 国家自然科学重点基金(20833006)资助项目 |
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| 摘 要： | 将金胶-TiO2纳米针修饰玻碳(Au-TiO2/GC)电极用于对氯霉素(CAP)浓度的电化学测定。 结果表明，在0.1 mol/L pH=7.0的磷酸盐缓冲溶液(PBS)体系中，CAP在Au-TiO2/GC电极上有较好的电化学响应，CAP浓度在8.0×10-7～1.0×10-4 mol/L范围内，峰电流与其浓度呈良好的线性关系，检出限为7.8×10-8 mol/L。 并对氯霉素滴眼液中CAP浓度进行了检测，发现该方法有高的检测灵敏度、好的重复性和抗干扰性，且操作简便、成本低廉。
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| 关 键 词： | 电分析 玻碳电极 金胶 TiO2 氯霉素 |
| 收稿时间： | 2010-04-15 |
| 修稿时间： | 2010-07-20 |
Application of Gold-nanoparticle-doped Titanium Dioxide Nanoneedle Modified Electrode for the Detection of Chloramphenicol |
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| XIN Xin,WEI Nannan,LU Tianhong,DU Jiangyan.Application of Gold-nanoparticle-doped Titanium Dioxide Nanoneedle Modified Electrode for the Detection of Chloramphenicol[J].Chinese Journal of Applied Chemistry,2011,28(2):240-244. |
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| Authors: | XIN Xin WEI Nannan LU Tianhong DU Jiangyan |
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| Affiliation: | (Jiangsu Key Laboratory of Biofunctional Materials,College of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210046) |
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| Abstract: | A gold nanoparticle-doped titanium dioxide nanoneedle modified glass carbon(Au-TiO2/GC) electrode was used for the electrochemical detection of the concentration of chloramphenicol(CAP). The results indicated that the Au-TiO2/GC electrode shows good electrochemical response for CAP in 0.1 mol/L PBS at pH=7.0. A linear relationship between the peak current and the concentration of CAP lies in the range of 8.0×10-7～1.0×10-4 mol/L with a detection limit of 7.8×10-8 mol/L. This method was applied to the detection of CAP concentration of CAP in eyedrop. It was found that this method has the high detection sensitivity, good reproducibility and ante-interference. |
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| Keywords: | electroanalysis glass carbon electrode gold gel titanium dioxide chloramphenicol |
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