Optical Detection of Nitrogen Monoxide by Metal Porphine Dispersed in Amorphous Silica Film
- 5 March 1988
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 17 (3), 521-524
- https://doi.org/10.1246/cl.1988.521
Abstract
New optical detection of nitrogen monoxide was developed using cobalt α, β, γ, δ-tetrakis (5-sulfothienyl) porphine which was doped in a silica thin film by a sol–gel method. The absorption band at λ=420 nm was weakened significantly by a contact with gaseous NO at 200 °C but was not sensitive to O2 and CO. The band change was completely reversible and depended on the pressure of NO in the pressure range of 1.3 to 3.2×103 Pa.Keywords
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