...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electroanalysis >Electrocatalytic properties of a novel poly-1-naphthylamine-modified electrode using ascorbic acid as molecule probe
【24h】

Electrocatalytic properties of a novel poly-1-naphthylamine-modified electrode using ascorbic acid as molecule probe

机译：以抗坏血酸为分子探针的新型聚-1-萘胺修饰电极的电催化性能

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

A glassy carbon electrode was modified with an electropolymerized film of 1-naphthylamine in aqueous solution. The electrocatalytic properties of this modified electrode (ME) were investigated using ascorbic acid (AA) as probe molecule. The electrochemical behavior of AA in buffer solution was examined by voltammetry and amperometry. The results showed that the ME exhibited good electrocatalytic activity towards the oxidation of AA, as a consequence, it can be used as amperometric sensor of this analyte in a flow injection system with good sensitivity. Calibration curves were linear over the concentration range 0.05 - 1.50 mM with a phosphate buffer solution pH 3 as the carrier, the detection limit was 1. ppm (S/N = 3). The methods were applied to the determination of AA in beverages and pharmaceutical products. A good correlation with a reference method was attained.
机译：用1-萘胺在水溶液中的电聚合膜修饰玻璃碳电极。以抗坏血酸（AA）为探针分子研究了该修饰电极（ME）的电催化性能。通过伏安法和安培法检查了AA在缓冲溶液中的电化学行为。结果表明，ME对AA的氧化表现出良好的电催化活性，因此，它可以在流动注射系统中以良好的灵敏度用作该分析物的安培传感器。以pH 3的磷酸盐缓冲溶液为载体，在0.05-1.50 mM的浓度范围内，校准曲线是线性的，检出限为1 ppm（S / N = 3）。该方法适用于饮料和药品中AA的测定。与参考方法具有良好的相关性。

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