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Crown ether derivatives of anthraquinone as ionophores in ion‐selective electrodes
Author(s) -
Allen John R.,
Cynkowski Tadeusz,
Desai Jayant,
Bachas Leonidas G.
Publication year - 1992
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.1140040504
Subject(s) - crown ether , anthraquinone , electrode , chemistry , selectivity , crown (dentistry) , inorganic chemistry , dinitrophenyl , sodium , ion , potassium , ether , 15 crown 5 , organic chemistry , materials science , antibody , immunology , biology , catalysis , composite material
1,8‐anthraquinono‐18‐crown‐6 and 10‐[(2,4‐dinitrophenyl)azo]‐9‐hydroxy‐1,8‐anthraceno‐18‐crown‐6 were prepared from 1, 8‐dichloroanthraquinone and used in the development of ion‐selective electrodes. The electrodes based on 10‐[(2,4‐dinitrophenyl)azo]‐9‐hydroxy‐1,8‐anthraceno‐18‐crown‐6 displayed better selectivity for potassium over sodium and had fewer interferences. The differences and similarities between the ionophores, as well as the optimum conditions for the preparation of the electrodes are discussed.