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Amperometric investigation of nickel and cobalt complexes with cephalexin
Author(s) -
Kapetanović V.,
Sužnjević D.,
Veselinović D.
Publication year - 1990
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.1140020611
Subject(s) - cobalt , ionic strength , nickel , chemistry , aqueous solution , ionic bonding , stoichiometry , ion , inorganic chemistry , stability constants of complexes , nuclear chemistry , organic chemistry
Cephalexin complexes with Ni(II) and Co(II) ions have been studied polarographically in an aqueous medium with a pH of 7–7.5, and an ionic strength of 0.2. It is shown that Ni(II) and Co(II) ions and cephalexin form [NiCEF] + and [CoCEF] + complexes under the experimental conditions cited. The stoichiometric composition of the complexes and the stability constants, log K ′ = 3.16 for Ni(II)‐cephalexin and log K ′ = 3.09 for Co(II) cephalexin, were determined by the Leden method.