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Interaction between thin-film tin oxide gas sensor and five organic vapors

Gong, H.
Wang, Y.J.
Teo, S.C.
Huang, L.
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Alternative Title
Abstract
A thin-film tin oxide gas sensor was tested in a flow system for the sensitivity to each vapor (10, 102, 103 ppm in air) of methanol, ethanol, isopropanol, acetone and acetic acid. With a change in operating temperature, the sensitivity to each vapor went through a maximum around 450°C. When compared at the same vapor concentration, the sensitivity was in the order of acetic acid > isopropanol > ethanol > acetone > methanol. This sequence was interpreted as resulting from the differences in ability to reduce tin oxide among the vapors.
Keywords
Source Title
Sensors and Actuators, B: Chemical
Publisher
Series/Report No.
Organizational Units
Organizational Unit
MATERIALS SCIENCE
dept
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Date
1999-03-09
DOI
10.1016/S0925-4005(99)00119-7
Type
Article
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