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Iodide‐selective electrodes based on a mercury‐triisobutylphosphine sulfide complex
Author(s) -
Daunert Sylvia,
Florido Antonio,
Bricker Jordi,
Dunaway Wes,
Bachas Leonidas G.,
Valiente Manuel
Publication year - 1993
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.1140050919
Subject(s) - iodide , thiocyanate , halide , electrode , chemistry , selectivity , inorganic chemistry , chloride , mercury (programming language) , vinyl chloride , sulfide , membrane , ion , ion selective electrode , nuclear chemistry , organic chemistry , catalysis , biochemistry , polymer , computer science , copolymer , programming language
Ion‐selective electrodes (ISEs) were developed by impregnating plasticized poly(vinyl chloride) membranes with a complex of triisobutylphosphine sulfide and Hg 2+ . The electrodes were selective for halides and thiocyanate, iodide being the preferred anion. The overall selectivity pattern of the electrodes was I − > SCN − ≈ Br − > Cl − > No 2 −≈ ClO 4 −> No 3 −≈ SO 4 2− . The electrodes were evaluated in both batch and flow‐injection modes.