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B5.4 - Gas Sensor Array for Low-cost Gas Chromatography in Food Industry Processes

Event
SENSOR+TEST Conferences 2009
2009-05-26 - 2009-05-28
Congress Center Nürnberg
Band
Proceedings SENSOR 2009, Volume I
Chapter
B5 - Gas Sensors
Author(s)
M. Bauersfeld, C. Peter, J. Woellenstein - Fraunhofer-Institute for Physical Measurement Techniques, Freiburg, Germany, M. Buecking, J. Bruckert, J. Steinhanses - Fraunhofer-Institute for Molecular Biology and Applied Ecology, Schmallenberg-Grafschaft, Germany
Pages
245 - 250
DOI
10.5162/sensor09/v1/b5.4
ISBN
978-3-9810993-4-8
Price
free

Abstract

A portable low-cost gas chromatographic measurement system will be presented. The system consists of a novel chromatographic column - which enables measurements at room temperature and ambient air - with a downstream micro machined gas sensor array and offers the separation and identification of volatile organic compounds. The targeted application is the monitoring of flavours directly during food processes. The measurement system was characterized by using flavours like methyl pyrrole, hexanal, pinene, ethyl butyrate and limonene as well as ethylene and methyl mercaptan as test gases. Reliable and reproducible identification of the gases in the concentration range of a few ppb has been achieved.

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