Investigation of CO/CH4 mixture measured with differently doped SnO2 sensors

Authors
Hahn, SH Barsan, N Weimar, U
Citation
Sh. Hahn et al., Investigation of CO/CH4 mixture measured with differently doped SnO2 sensors, SENS ACTU-B, 78(1-3), 2001, pp. 64-68
Citations number
5
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
78
Issue
1-3
Year of publication
2001
Pages
64 - 68
Database
ISI
SICI code
0925-4005(20010830)78:1-3<64:IOCMMW>2.0.ZU;2-K
Abstract
Arrays consisting of thick-film SnO2 sensors (based on three different mate rials and operated at two different temperatures) were exposed to mixtures of carbon monoxide (0, 3, 7 and 14 ppm), methane (0, 400, 1500 and 5000 ppm ) and water (0, 30 and 50% RH at 25 degreesC). It was possible to discrimin ate between different mixtures of CO and CH4 in the presence of different r elative humidities in air. In addition, it was possible to quantify both CH 4 and CO in the background of the other by using multivariate data analysis . (C) 2001 Elsevier Science B.V. All rights reserved.