Gas sensitive field-effect transistors: applications to the monitoring of biotechnological processes

verfasst von

Roland Ulber, Thomas Kullick, Oliver Thordsen, Adnan Ritzka, Florian Irtel, Bernd Hitzmann, Thomas Scheper

Abstract

In this paper, new on-line sensors based on pH-sensitive field-effect transitors (pH-FET) are presented for the measurement of ammonia and carbon dioxide during different cultivation processes. Both systems show a linear response between 2.7x10^-4 and 2.7x10^-2moll^-1 for ammonia and 2.2x10^-4 and 1.5x10^-2moll^-1 for dissolved carbon dioxide. A similar system can be used for the determination of enzyme activities. Copyright (C) 1998 Elsevier Science B.V.

Organisationseinheit(en)

Institut für Technische Chemie

Typ

Artikel

Journal

Analytica chimica acta

Band

373

Seiten

253-259

Anzahl der Seiten

7

ISSN

0003-2670

Publikationsdatum

20.10.1998

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Analytische Chemie, Biochemie, Umweltchemie, Spektroskopie

Elektronische Version(en)

https://doi.org/10.1016/S0003-2670(98)00424-3 (Zugang: Unbekannt)