• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Graphene oxide-modified electrodes for sensitive determination of diethylstilbestrol
【24h】

Graphene oxide-modified electrodes for sensitive determination of diethylstilbestrol

机译：氧化石墨烯修饰的电极灵敏测定己烯雌酚

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper reports an electrochemical sensor fabricated with graphene oxide (GO) modified on a chitosan-coated glassy carbon electrode (GO-CS/GCE) and its application for the detection of diethylstilbestrol (DES). It was observed that the effective electrochemical surface area of the GO modified electrode was nearly 10 times that of the bare GCE. This could be used to explain the results that the oxidation peak current of DES on the GO-CS/GCE was much larger than on the bare GCE. Under optimized conditions, the prepared electrode could be used to electrochemically detect DES according to the oxidation of the DES. Based on the technique of differential pulse voltammetry and the accumulation of DES on GO modified electrodes, the calibration curve for DES determination could be obtained with a linear range of 1.5 × 10~(-8)-3.0 × 10 ~(-5) M and an estimated detection limit of 3.0 × 10~(-9) M (S/N = 3). The feasibility of the developed electrode for tablet sample analysis was investigated. Our investigation revealed that GO could significantly improve the analytical performance of electrochemical sensors.
机译：本文报道了一种用氧化石墨烯（GO）改性的电化学传感器，该传感器在壳聚糖涂层的玻碳电极（GO-CS / GCE）上进行了修饰，并将其用于检测己二烯雌酚（DES）。观察到，GO修饰电极的有效电化学表面积是裸露的GCE的近10倍。这可以用来解释结果，即在GO-CS / GCE上DES的氧化峰值电流比在裸露的GCE上大得多。在最佳条件下，制备的电极可用于根据DES的氧化来电化学检测DES。基于差分脉冲伏安法和DES在GO修饰电极上的积累，可以在1.5×10〜（-8）-3.0×10〜（-5）M的线性范围内获得用于DES测定的校准曲线估计的检出限为3.0×10〜（-9）M（S / N = 3）。研究了开发的电极用于片剂样品分析的可行性。我们的研究表明，GO可以显着提高电化学传感器的分析性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号