Optosensing of hydrogen sulphide through paper impregnated with lead acetate |
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| Authors: | Ramaier Narayanaswamy and Fortunato Sevilla III |
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| Institution: | (1) Department of Instrumentation and Analytical Science, University of Manchester Institute of Science and Technology, P.O. Box 88, M60 1QD Manchester, UK;(2) Present address: University of Santo Tomas, Espana, Manila, Philippines |
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| Abstract: | Summary A flow-through optosensing method for hydrogen sulphide analysis is described, which involves reflectance measurements through optical fibres on paper impregnated with lead acetate. Levels as low as 50 ppb H2S could be measured with high reproducibility within 10 s. The response was affected by flow rate and relative humidity, both of which were controlled during the measurement process. The method provides a sensitive real-time analysis of hydrogen sulphide and could be carried out remote from the instrumentation system.
Schwefelwasserstoffbestimmung durch Bleiacetat-imprägniertes Papier mit Hilfe eines optischen Sensors |
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