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Crown ether derivatives of anthraquinone as ionophores in ion-selective electrodes

✍ Scribed by John R. Allen; Tadeusz Cynkowski; Jayant Desai; Leonidas G. Bachas

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 451 KB
Volume: 4
Category: Article
ISSN: 1040-0397
DOI: 10.1002/elan.1140040504

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✦ Synopsis

A B S r n C T

1,8-anthraquinono-l8-crown-6 and 10-[(2,4-dinitrophenyl)azol-9-liydroxy-l,&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]-~-hydroxy-1,8-anthraceno-18-crown-6 displayed better selectivity for potassium over sodium and had fewer interferences. The differences and simdarities between the ionophores, as well as the optimum conditions for the preparation of the electrodes are discussed.

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