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Carbonate ion electrode based on HTPP sites
Author(s) -
KeMing Wang,
CongRong Niu,
JinFeng Ma,
RuQin Yu
Publication year - 1986
Publication title -
acta chimica sinica english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 0256-7660
DOI - 10.1002/cjoc.19860040209
Subject(s) - chemistry , phosphonium , electrode , selectivity , carbonate ion , inorganic chemistry , ion , solvent , salt (chemistry) , carbonate , organic chemistry , catalysis
Several quaternary phosphonium salts have been used as the site materials for construction of carbonate ion electrodes. Among them the electrode based on hexadecyltriphenylphosphonium salt showed best performance characteristics. The Nerstian response range of the electrode is from 1 × 10 −2 down to 6.3 × 10 −7 mol · dm −3 with a detection limit of 1.8 × 10 −7 mol · dm 3 . The selectivity order of ions can be altered by the introduction of trifluoroacetyl‐ tert ‐butylbenzene as a solvent mediator. The strong solvatoin of the primary ion of interest in the membrane phase by the solvent mediator favors the improvement of the selectivity of the proposed electrode.