A Double Chemfet Flow Cell System for Detection of Heavy Metal Ions and Integration in µTAS

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Abstract

A new type of flow cell has been developed for detection of heavy metal ions in aqueous solutions, based on the flow injection method. The cell contains two chemically modified field effect transistors (CHEMFETs) of which one is selective for the supporting electrolyte ion (in this case a 0.1 M potassium ion solution) and the other is selective for the heavy metal ion to be detected (Cd2+, Pb2+). The differential signal of the reference electrode CHEMFET and the heavy metal ion CHEMFET in the flow cell system which has been presently developed will be evaluated for miniaturization and further integration in a micro total analysis system.
Original languageEnglish
Title of host publicationMicro Total Analysis Systems
Subtitle of host publicationProceedings of the μTAS ’94 Workshop, held at MESA Research Institute, University of Twente, The Netherlands, 21–22 November 1994
EditorsA. van den Berg, P. Bergveld
Place of PublicationDordrecht
PublisherKluwer
Pages283–288
ISBN (Electronic)978-94-011-0161-5
ISBN (Print)978-0-7923-3217-6, 978-94-010-4072-3
DOIs
Publication statusPublished - 1994
Event1st Workshop on Micro Total Analysis Systems, μTAS 1994 - University of Twente, Enschede, Netherlands
Duration: 21 Nov 199422 Nov 1994
Conference number: 1

Workshop

Workshop1st Workshop on Micro Total Analysis Systems, μTAS 1994
Abbreviated titleMicroTAS
Country/TerritoryNetherlands
CityEnschede
Period21/11/9422/11/94

Keywords

  • Crown ether
  • Flow cells
  • Hydroxyethyl methacrylate
  • Differential signal
  • Covalent attachment

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