ELECTROCATALYTIC OXIDATION AND FLOW DETECTION OF CYSTEINE AT AN AQUOCOBALAMIN ADSORBED GLASSY-CARBON ELECTRODE

	ELECTROCATALYTIC OXIDATION AND FLOW DETECTION OF CYSTEINE AT AN AQUOCOBALAMIN ADSORBED GLASSY-CARBON ELECTRODE
	LI HM ; LI T ; WANG EA
刊名	talanta
	1995
卷号	42 期号:7 页码:885-890
关键词	PERFORMANCE LIQUID-CHROMATOGRAPHY CHEMICALLY MODIFIED ELECTRODE ELECTROCHEMICAL DETECTION COBALT-PHTHALOCYANINE AMPEROMETRIC DETECTION REDUCED GLUTATHIONE WHOLE-BLOOD VITAMIN-B12 PENICILLAMINE REDUCTION
ISSN号	0039-9140
中文摘要	a chemically modified electrode (cme) constructed by adsorption of aquocobalamin (vb12a) onto a glassy carbon electrode surface was demonstrated to catalyze the electro-oxidation of cysteine, a sulfhydryl-containing compound. the sulfhydryl oxidation occured at 0.54-0.88 v vs. ag/agcl depending on ph value (3.0-10.0). the electrocatalytic behavior of cysteine is elucidated with respect to solution ph, operating potential and other variables as well as the cme preparation conditions. when used as the sensing electrode in flow injection amperometric detection, the cme permitted detection of the compound at 0.8 v. the detection limit was 1.7 pmol. the linear response range went up to 1.16 nmol. the stability of the cme was shown by rsd (4.2%) over 10 repeated injections.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2010-12-30 ; 2011-06-10
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/26419]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	LI HM,LI T,WANG EA. ELECTROCATALYTIC OXIDATION AND FLOW DETECTION OF CYSTEINE AT AN AQUOCOBALAMIN ADSORBED GLASSY-CARBON ELECTRODE[J]. talanta,1995,42(7):885-890.
APA	LI HM,LI T,&WANG EA.(1995).ELECTROCATALYTIC OXIDATION AND FLOW DETECTION OF CYSTEINE AT AN AQUOCOBALAMIN ADSORBED GLASSY-CARBON ELECTRODE.talanta,42(7),885-890.
MLA	LI HM,et al."ELECTROCATALYTIC OXIDATION AND FLOW DETECTION OF CYSTEINE AT AN AQUOCOBALAMIN ADSORBED GLASSY-CARBON ELECTRODE".talanta 42.7(1995):885-890.