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Portable battery-powered flow injection analyser for volatile alcohols using semiconductor gas sensors

Citation

Dimitrakopoulos, LT and Alexander, PW and Hibbert, DB, Portable battery-powered flow injection analyser for volatile alcohols using semiconductor gas sensors, Analytica Chimica Acta, 321, (1) pp. 61-67. ISSN 0003-2670 (1996) [Refereed Article]

DOI: doi:10.1016/0003-2670(95)00564-1

Abstract

The response characteristics of Taguchi TGS812 and TGS824 type semiconductor gas sensors were evaluated for flow injection monitoring of alcohol concentrations in liquid samples. The detection method was based on the head space analysis of vapour above aqueous samples containing ethanol. A low cost, hand-held monitor has been developed for this application in which an air carrier stream is pumped through a twin sensor cell. Different sensitivities to aqueous ethanol samples were observed at each sensor. Analysis of commercial liquor samples such as beers, wines and liqueurs showed a correlation coefficient as high as 0.9999 in comparison with gas chromatography analysis. This system is therefore applicable as a portable, hand-held flow injection monitor for process control during production and for monitoring the quality of products containing ethanol.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Instrumental Methods (excl. Immunological and Bioassay Methods)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Dimitrakopoulos, LT (Mrs Lucy Tina Dimitrakopoulos)
Author:Alexander, PW (Professor Peter Alexander)
ID Code:7857
Year Published:1996
Web of Science® Times Cited:8
Deposited By:Applied Science
Deposited On:1996-08-01
Last Modified:2011-08-19
Downloads:0

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