高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (5): 710.

• 研究简报 • 上一篇    下一篇

毛细管电泳的微机化安培法检测

胡深, 李培标, 程介克   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:1995-03-22 出版日期:1996-05-24 发布日期:1996-05-24
  • 通讯作者: 程介克
  • 作者简介:胡深,男,25岁,博士研究生.
  • 基金资助:

    国家自然科学基金

Computerized Amperometric Detection for capillary Electrophoresis

HU Sben, LI Pei-Biao, CHENG Jie-Ke   

  1. Department of Chemistry, Wuhan University, Wuhan 430072
  • Received:1995-03-22 Online:1996-05-24 Published:1996-05-24

关键词: 毛细管电泳, 微电极, 安培法检测, 微型计算机

Abstract: Acomputerized end-column amperometric detector for capillary zone electrophoresis is constructed.The microelectrode is positioned at the end of 25 μm i.d.capillary by micromanipulator directly.The electrode potential is controlled and the signal is sampled by the microcomputer.Application of the system to the separation and detection of NE, IPand CATis demonstrated.This system is also applied to investigate the field-amplified injection in capillary electrophoresis with amperometric detection and the concentration limits of 0.45~0.65nmol/L for DA, NE, Eand IPare achieved.

Key words: Capillary electrophoresis, Microelectrode, Amperometric detection, Microcomputer

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