GLUCOSE-SENSING CARBON PASTE ELECTRODE CONTAINING POLYETHYLENE GLYCOL-MODIFIED GLUCOSE-OXIDASE

被引：39

作者：

YABUKI, S

MIZUTANI, F

KATSURA, T

机构：

[1] Research Institute for Polymers and Textiles, Tsukuba, Ibaraki, 305

来源：

BIOSENSORS & BIOELECTRONICS | 1992年 / 7卷 / 10期

关键词：

GLUCOSE; GLUCOSE OXIDASE; POLYETHYLENE GLYCOL; MODIFICATION; CARBON PASTE; ENZYME ELECTRODE;

D O I：

10.1016/0956-5663(92)85051-B

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Polyethylene glycol-modified glucose oxidase (PEG-GOD) was prepared. Carbon paste (CP) containing PEG-GOD retained enzyme activity of 0.02 U cm-2. Anodic and cathodic peak currents of modified GOD in CP matrix were observed on the differential pulse voltammograms at the potential of -0.36 and -0.36 V vs. Ag/AgCl, respectively. The addition of glucose to a test solution brought about an increase in the anodic current on the PEG-GOD-based electrode at the potential as low as 0.0 V vs. Ag/AgCl. The current increase was proportional to the concentration of glucose up to 50 mM.

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页码：695 / 700

页数：6

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