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Chalcogenide Glass Based Chemosensors

Authors:
Winfried Vonau
Ute Enseleit
Monika Berthold
Claudia Feller
Uwe Partsch
Stefan Koerner

Keywords: determination of heavy metals; potentiometric sensor; chalcogenide glasses, thick film technology; copper; lead

Abstract:
A number of chalcogenide glasses for the fabrication of potentiometric electrodes selective for heavy metal ions were melted and characterised. The focus was directed on the detection of Cu2+ and Pb2+ ions. Next to the preparation of conventional rod electrodes, the purpose of the research was the realisation of corresponding planar electrodes in thick film technology. Until now, for measurements only rod-electrodes were available. Miniaturised electrodes were achieved for the case of copper ion determination, whereupon several glass compositions were tested. The sintering behaviour of the inves-tigated lead ion selective glasses hitherto did not allow the fab-rication by the thick film process. The requirement to add AgI to the initial mix is associated with light sensitivity of corre-sponding sensors.

Pages: 14 to 18

Copyright: Copyright (c) IARIA, 2017

Publication date: September 10, 2017

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-581-4

Location: Rome, Italy

Dates: from September 10, 2017 to September 14, 2017