| 一种检测沙丁胺醇的高灵敏复合纳米免疫电化学传感器的研制 |
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| 引用本文： | 吴珺,张洁,邵科峰,陈昌云,王传现,赵波.一种检测沙丁胺醇的高灵敏复合纳米免疫电化学传感器的研制[J].食品科学,2014,35(12):243-248. |
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| 作者姓名： | 吴珺 张洁 邵科峰 陈昌云 王传现 赵波 |
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| 作者单位： | 1.南京师范大学化学与材料科学学院，江苏 南京 210023；2.上海出入境检验检疫局，上海 200135 |
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| 基金项目： | 江苏省科技厅科技支撑计划——工业部分项目(BE2011196);江苏省农业科技自主创新资金项目(CX123088);上海市科委重点科技攻关项目(10391901800) |
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| 摘 要： | 制备一种新型纳米金-石墨烯修饰的复合纳米免疫传感器，并对电极表面修饰材料进行了表征；应用循环伏安法研究沙丁胺醇在修饰电极表面的电化学行为，用差分脉冲伏安法对其检测范围进行实验研究。结果表明：差分脉冲伏安法所得电流差与沙丁胺醇质量浓度在1×10－6～5×10－3 g/L内呈良好的线性关系，检测限为2×10－7 g/L，对牛肉、鸭肉、猪肉和猪肝中的沙丁胺醇含量分别进行测定，平均回收率在91.2%～102.2%之间，结果令人满意。复合纳米免疫传感器具有良好的稳定性和重复性。
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| 关 键 词： | 沙丁胺醇 石墨烯 纳米金 纳米免疫传感器 |
An Immunosensor for Detection of Salbutamol Based on Composite Nanomaterial-Modified Electrode |
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| WU Jun,ZHANG Jie,SHAO Ke-feng,CHEN Chang-yun,WANG Chuan-xian,ZHAO Bo.An Immunosensor for Detection of Salbutamol Based on Composite Nanomaterial-Modified Electrode[J].Food Science,2014,35(12):243-248. |
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| Authors: | WU Jun ZHANG Jie SHAO Ke-feng CHEN Chang-yun WANG Chuan-xian ZHAO Bo |
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| Affiliation: | 1. College of Chemistry and Material Science, Nanjing Normal University, Nanjing 210023, China;
2. Shanghai Exit-Entry Inspection and Quarantine Bureau, Shanghai 200135, China |
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| Abstract: | In this paper, a glassy carbon electrode modified with gold nanoparticles and graphene was prepared. The surfacemodifying
materials were characterized, and the electrochemical behaviors of salbutamol on the modified electrode were
investigated by cyclic voltammetry. The detection range of salbutamol was employed by differential pulse voltammetry. The
immunosensor demonstrated excellent performance for salbutamol detection with a broad linear range of 1 × 10-6 to 5 × 10-3g/L
and a limit of detection of 2 × 10-7g/L. A good recovery of salbutamol in the range of 91.2%–102.2% was obtained in pork,
beef, duck and pork liver. This modified electrode revealed excellent reproducibility and stability. |
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| Keywords: | salbutamol nanogold graphene nanoparticle immunosensor |
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