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

被引：0

作者：

Ulber, R ^{[1
]}

Kullick, T ^{[1
]}

Thordsen, O ^{[1
]}

Ritzka, A ^{[1
]}

Irtel, F ^{[1
]}

Hitzmann, B ^{[1
]}

Scheper, T ^{[1
]}

机构：

[1] Univ Hannover, Inst Tech Chem, D-30167 Hannover, Germany

来源：

ANALYTICA CHIMICA ACTA | 1998年 / 373卷 / 2-3期

关键词：

pH-FET; dissolved gas sensor; ammonia; carbon dioxide; enzyme activity; bioprocess monitoring and control;

D O I：

10.1016/S0003-2670(98)00424-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, new on-fine 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 2.7 x 10(-4) and 2.7 x 10(-2) mol l(-1) for ammonia and 2.2 x 10(-4) and 1.5 x 10(-2) mol l(-1) for dissolved carbon dioxide. A similar system can be used for the determination of enzyme activities. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：253 / 259

页数：7

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