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The pH-static enzyme sensor: Design of the pH control system

✍ Scribed by Bart H. van der Schoot; Hans Voorthuyzen; Piet Bergveld

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 463 KB
Volume: 1
Category: Article
ISSN: 0925-4005
DOI: 10.1016/0925-4005(90)80270-a

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✦ Synopsis

The pH-static enzyme sensor offers a solution to the buffer dependency of ISFET-based enzyme sensors. A continuous coulometric titration of the reaction products keeps the pH in the enzymatic membrane at a constant level. This paper presents an automatic system to control the compensating current that is a direct measure for the substrate concentration.

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