Details
| Original language | English |
|---|---|
| Pages (from-to) | 253-259 |
| Number of pages | 7 |
| Journal | Analytica chimica acta |
| Volume | 373 |
| Issue number | 2-3 |
| Publication status | Published - 20 Oct 1998 |
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.
Keywords
- Ammonia, Bioprocess monitoring and control, Carbon dioxide, Dissolved gas sensor, Enzyme activity, pH-FET
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Environmental Science(all)
- Environmental Chemistry
- Chemistry(all)
- Spectroscopy
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In: Analytica chimica acta, Vol. 373, No. 2-3, 20.10.1998, p. 253-259.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Gas sensitive field-effect transistors: applications to the monitoring of biotechnological processes
AU - Ulber, Roland
AU - Kullick, Thomas
AU - Thordsen, Oliver
AU - Ritzka, Adnan
AU - Irtel, Florian
AU - Hitzmann, Bernd
AU - Scheper, Thomas
PY - 1998/10/20
Y1 - 1998/10/20
N2 - 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.
AB - 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.
KW - Ammonia
KW - Bioprocess monitoring and control
KW - Carbon dioxide
KW - Dissolved gas sensor
KW - Enzyme activity
KW - pH-FET
UR - http://www.scopus.com/inward/record.url?scp=0032508898&partnerID=8YFLogxK
U2 - 10.1016/S0003-2670(98)00424-3
DO - 10.1016/S0003-2670(98)00424-3
M3 - Article
AN - SCOPUS:0032508898
VL - 373
SP - 253
EP - 259
JO - Analytica chimica acta
JF - Analytica chimica acta
SN - 0003-2670
IS - 2-3
ER -