BIOSENSOR BASED ON AN ENZYME-MODIFIED ELECTRODE FOR HIGHLY-SENSITIVE MEASUREMENT OF POLYPHENOLS

被引：31
|
作者：
EREMENKO, A
MAKOWER, A
JIN, W
RUGER, P
SCHELLER, F
机构：
[1] POTSDAM UNIV,DEPT ANALYT CHEM,D-13122 BERLIN,GERMANY
[2] RES CTR MOLEC DIAGNOST & THERAPY,DEPT BIOSENSORS,MOSCOW 113149,RUSSIA
[3] BOEHRINGER MANNHEIM GMBH,D-82377 PENZBERG,GERMANY
来源：
BIOSENSORS & BIOELECTRONICS | 1995年 / 10卷 / 08期
关键词：
AMPEROMETRY; ENZYME-MODIFIED ELECTRODE; POLYPHENOLS; P-AMINO-PHENOL;
D O I：
10.1016/0956-5663(95)96962-X
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
The use of glucose dehydrogenase from Acinetobacter calcoaceticus for highly sensitive measurement of polyphenols, based on bioelectrocatalytic analyte recycling, has been demonstrated. A polyphenol (analyte) is oxidized on the surface of a glassy carbon electrode at an anodic potential and is regenerated by immobilized glucose dehydrogenase (GDH) in the presence of glucose, resulting in an amplified response. The dynamic properties of the enzyme-modified glassy carbon electrode allow the convenient monitoring of subnanomolar analyte concentration. The detection limits for p-aminophenol and norepinephrine are 0.2 nM and 0.5 nM, respectively.
引用
收藏
页码：717 / 722
页数：6
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