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Optimization of the Composition of Interfaces in Miniature Planar Chloride Electrodes
Author(s) -
Paciorek Renata,
van der Wal Peter D.,
de Rooij Nicolaas F.,
MajŻurawska Magdalena
Publication year - 2003
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200302816
Subject(s) - electrode , materials science , chloride , silicon , membrane , polymer , silver chloride , platinum , polyvinyl chloride , ion , adhesive , chemical engineering , composite material , inorganic chemistry , chemistry , optoelectronics , organic chemistry , catalysis , metallurgy , layer (electronics) , biochemistry , engineering
Different solid contact arrangements for miniature screen‐printed electrodes and silicon based electrodes for chloride ions were investigated. As an inner contact the electrochemically deposited gold on screen‐printed silver and platinum (silicon based electrodes) were used. As the ion‐exchanger for chloride methyl‐tri‐ n ‐tetradecylammonium chloride with PVC or Tecoflex as the polymer matrix was used. The influence of different intermediate layers between inner contact and the ion selective membrane was studied. The best characteristic of the electrode was obtained for electrodes containing gold contact and conductive polymer (poly‐3‐octylthiophene) with adhesive admixture between the inner contact and the proper ion selective membrane.