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A Bis‐Oxime Derivative of Diaza‐18‐Crown‐6 as an Ionophore for Silver Ion
Author(s) -
Goldcamp Michael J.,
Ashley Kevin,
Edison Sara E.,
Pretty Jack,
Shumaker Joseph
Publication year - 2005
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.200403196
Subject(s) - ionophore , polyvinyl chloride , potentiometric titration , chemistry , oxime , selectivity , ion , electrode , membrane , derivative (finance) , inorganic chemistry , chloride , ion selective electrode , nuclear chemistry , medicinal chemistry , organic chemistry , catalysis , biochemistry , financial economics , economics
A new pendant‐arm derivative of diaza‐18‐crown‐6, containing two oxime donor groups, has been synthesized and incorporated into a polyvinyl chloride (PVC) membrane ion‐selective electrode. The electrode shows selectivity for Ag + ion, with a near Nernstian response. Pb 2+ , Cu 2+ , Hg 2+ , and Tl + are major interfering ions, with Cd 2+ having minor interference. The electrode shows no potentiometric response for the ions Mg 2+ , Al 3+ , K + , Ca 2+ , Ni 2+ , Fe 3+ , and La 3+ , and is responsive to H + at pH<6.