DETERMINATION OF LACTATE-DEHYDROGENASE BY THE ELECTROCHEMICAL OXIDATION OF NADH AT A MODIFIED MICROBAND GOLD ELECTRODE

被引:9
作者
CAI, CX
JU, HX
CHEN, HY
机构
[1] Department of Chemistry, Nanjing University
关键词
AMPEROMETRY; LACTATE DEHYDROGENASE; NICOTINAMIDE ADENINE DINUCLEOTIDE; MICROELECTRODE; CHEMICALLY MODIFIED ELECTRODE;
D O I
10.1080/00032719508001426
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new amperometric electrode for the assay of lactate dehydrogenase (LDH) is prepared by modifying a nanometer-sized microband gold electrode with nickel hexacyanoferrate. The amperometric determination bases on electrochemically detecting NADH produced by the enzymatic reaction of lactate with NAD(+) under the catalysis of LDH. The modified electrode can sensitively detect LDH at +0.55V vs. SCE with a linear response in the range of 10U/mL to 350/mL under optimum conditions.
引用
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页码:809 / 820
页数:12
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