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Potentiometry with perchlorate and fluoroborate ion‐selective carbon paste electrodes
Author(s) -
Ježková Jitka,
Musilová Jarmila,
Vytřas Karel
Publication year - 1997
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.1140091813
Subject(s) - perchlorate , electrode , ion , inorganic chemistry , carbon fibers , carbon paste electrode , materials science , chemistry , electrochemistry , cyclic voltammetry , organic chemistry , composite material , composite number
Perchlorate and tetrafluoroborate ion‐selective carbon paste electrodes based on different moditied pasting liquids were prepared and their basic characteristics were tested in direct potentiometric measurements. Although the slopes of calibration plots, detection limits as well as selectivity coefficients were similar to those obtained with commercial liquid/plastic membrane type ion‐selective electrodes, the carbon pastes offered some advantages as more rapid response and very low ohmic resistance. The resulting electrodes were successfully applied in ion‐pair formation‐based potentiometric titrations of perchlorate, fluororate and iodide ions with cetylpyridinium chloride.