Premium
Functional layers for chemical sensors based on conducting polypyrrole
Author(s) -
Jahn Heimo,
Berthold Monika,
Kaden Heiner
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200102)164:1<181::aid-masy181>3.0.co;2-1
Subject(s) - polypyrrole , potentiometric titration , electrode , potentiometric sensor , materials science , electrochemistry , membrane , ion , conductive polymer , selectivity , ion selective electrode , chemical engineering , nanotechnology , analytical chemistry (journal) , chemistry , chromatography , organic chemistry , biochemistry , catalysis , engineering
Functional thin layers based on polypyrrole were used in electrochemical sensors as mixed conducting interfaces between ion‐selective membranes and the wiring. In particular, new types of ion‐selective electrodes for potentiometric measurement of pH value and concentration of sulfate ions in solutions were developed. The resulting electrodes do not need any inner liquid junction. First determinations of the sensor parameters sensitivity, selectivity and long term stability indicate a good performance of the prepared sensors. The results imply that interfaces, containing polypyrrole, could be an interesting basis for the construction of a new type of all‐solid‐state ion‐selective electrodes.