毛细管电泳场放大进样化学发光检测10^(-16)mol/L水平钴(Ⅱ)  

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

作　　者：刘彦明[1] 刘二保[1] 程介克[1] 

机构地区：[1]武汉大学化学系,武汉430072

出　　处：《高等学校化学学报》2001年第12期2005-2007,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 0 75 0 17)资助

摘　　要：A method of on\|line 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 field\|amplified sample injection on detection limits of metal ions were studied in detail. The sub\|fmol/L level(0.13 fmol/L, 1.6 ymol) detection of cobalt ions in ultradilute solution was performed. The separation of fmol/L level Co(Ⅱ) and trace amounts of Ni(Ⅱ) was performed successfully.A method of on\|line 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 field\|amplified sample injection on detection limits of metal ions were studied in detail. The sub\|fmol/L level(0.13 fmol/L, 1.6 ymol) detection of cobalt ions in ultradilute solution was performed. The separation of fmol/L level Co(Ⅱ) and trace amounts of Ni(Ⅱ) was performed successfully.

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 痕量分析 富集 

分 类 号：O614.812[理学—无机化学] O657.8[理学—化学]