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
收藏
页码：253 / 259
页数：7
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