Battery-powered miniature bipotentiostats for amperometric biosensors

被引：3

作者：

Quinn, CP ^{[1
]}

Wagner, JG ^{[1
]}

Heller, A ^{[1
]}

Yarnitzky, N ^{[1
]}

机构：

[1] TECHNION ISRAEL INST TECHNOL, DEPT CHEM, IL-32000 HAIFA, ISRAEL

来源：

INSTRUMENTATION SCIENCE & TECHNOLOGY | 1996年 / 24卷 / 04期

关键词：

D O I：

10.1080/10739149608001212

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The design and characterization of two miniature bipotentiostats for use with amperometric biosensors is described. The bipotentiostats are powered by 9V batteries and have counter electrode potential swings of +/- 1.5 V and +/- 3.0 V. respectively. In the first, a voltage signal, proportional to the current generated by the sensor, is transferred to a data logger. In the second, the output signal is transmitted to a personal computer through an opto-coupler by pulse width modulation so as to electrically isolate the system in or on the body from the external AC line. The devices accurately measure currents in the nA range and their output signals are stable for over 100 h. They are suitable for use in both in vitro and in vivo studies requiring accurate amperometry.

引用

页码：263 / 275

页数：13

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