• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electroanalysis >Chronopotentiometric determination of redox states of peptides
【24h】

Chronopotentiometric determination of redox states of peptides

机译：计时电位法测定肽的氧化还原状态

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

Reduced and oxidized forms of peptides were studied by different electrochemical methods at carbon and hanging mercury drop (HMDE) electrodes. Striking differences between the reduced and oxidized peptides were obtained by constant current chronopotentiometric stripping analysis (CPSA) at HMDE. Peptides yielded electrocatalytic peak H at highly negative potentials (ca. - 1.75 V). Reduced peptides adsorbed at positively charged HMDE produced substantially higher peak H than the oxidized forms. Voltammetry reflected the peptide redox state less efficiently. Different orientation of reduced and oxidized molecules at the positively charged electrode and very fast potential changes in CPSA were probably responsible for the observed effects.
机译：通过不同的电化学方法在碳电极和悬挂汞滴（HMDE）电极上研究了肽的还原形式和氧化形式。还原肽和氧化肽之间的惊人差异是通过HMDE上的恒流计时电位溶出分析（CPSA）获得的。肽在高度负电势（约1.75 V）下产生电催化峰H。带正电的HMDE吸附的还原肽产生的H峰明显高于氧化形式。伏安法不太有效地反映了肽的氧化还原状态。带正电荷的电极上还原和氧化分子的不同取向以及CPSA中非常快速的电势变化可能是所观察到的效应的原因。

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