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

Marie-Luise Bauersfeld, Carolin Peter, Juergen Woellenstein, Mark Buecking, Joerg Bruckert & Juergen Steinhanses
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...