高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (12): 2005.

• 研究快报 • 上一篇    下一篇

毛细管电泳场放大进样化学发光检测10-16mol/L水平钴(Ⅱ)

刘彦明, 刘二保, 程介克   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:2001-07-27 出版日期:2001-12-24 发布日期:2001-12-24
  • 通讯作者: 程介克(1930年出生),男,教授,博士生导师,从事毛细管电泳及单细胞分析研究.E-mail:jkcheng@whu.edu.cn E-mail:jkcheng@whu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20075017)资助

Chemiluminescence Detection of 10-16mol/L Level Co(Ⅱ) with Field-amplified Sample Injection in Capillary Electrophoresis

LIU YanMing, LIU ErBao, CHENG JieKe    

  1. Department of Chemistry, Wuhan University, Wuhan 430072, China
  • Received:2001-07-27 Online:2001-12-24 Published:2001-12-24

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关键词: 毛细管电泳, 化学发光检测, 场放大进样, 单分子水平, 钴

Abstract: Amethod of online ultrasensitive chemiluminescence detection with capillary electrophoresis for Co(Ⅱ) is reported. Using our newly developed capillary electrophoresis with chemiluminescence detection system and novel mixing mode of the reagents, the effects of fieldamplified sample injection on detection limits of metal ions were studied in detail. The subfmol/Llevel(0.13 fmol/L, 1.6 ymol) detection of cobalt ions in ultradilute solution was performed. The separation of fmol/Llevel Co(Ⅱ) and trace amounts of Ni(Ⅱ) was performed successfully.

Key words: Capillary electrophoresis, Chemiluminescence detection, Fieldamplified sample injection, Single molecules level, Cobalt(Ⅱ)

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