Study of ISFET signal drift by means of virtual instrumentation

Authors
Valdes, EE Munoz, FJ Dominguez, C
Citation
Ee. Valdes et al., Study of ISFET signal drift by means of virtual instrumentation, QUIM ANAL, 18, 1999, pp. 134-135
Citations number
4
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
QUIMICA ANALITICA
ISSN journal
02120569 → ACNP
Volume
18
Year of publication
1999
Supplement
1
Pages
134 - 135
Database
ISI
SICI code
0212-0569(1999)18:<134:SOISDB>2.0.ZU;2-8
Abstract
This work presents the use of the virtual instrumentation for study the ISF ET signal drift. The virtual instrumentation is based on a PC with a 16-bit data acquisition board accomplished with two additional I-V converters. Th is system measures and records experimental conditions and operation sensor variables. In the work we define two measurement strategies in order to re duce the ISFET signal drift. Finally we obtain that in alkaline solution th e positive potential in the reference electrode reduce the sensor drift.