DC-resistometric urea sensitive device utilizing a conducting polymer film for the gas-phase detection of ammonia
The construction of an urea sensitive device based on a conducting polymer is described. The conducting polymer (polypyrrole) was exposed only to a gas-phase; this led to a significant improvement in its stability. A DC-resistometric measuring principle was used, which required only simple measuring...
Saved in:
Published in | Biosensors & bioelectronics Vol. 10; no. 3; pp. 283 - 287 |
---|---|
Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Lausanne
Elsevier B.V
1995
Elsevier Science |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The construction of an urea sensitive device based on a conducting polymer is described. The conducting polymer (polypyrrole) was exposed only to a gas-phase; this led to a significant improvement in its stability. A DC-resistometric measuring principle was used, which required only simple measuring equipment.
The device responded rapidly to between 0 and 500 mM urea, with resistance changes of between 0 and 400 Ohms. The measurement of the urea content of a sample and subsequent regeneration took 20 min. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0956-5663 1873-4235 1873-4235 |
DOI: | 10.1016/0956-5663(95)96847-R |