New calcium-selective electrodes based on crown compounds bearing ester groups in the macrocyclic ring

Author: Shabanov A.   Khandar A.   Gasanova M.   Gasanova U.   Asadov G.  

Publisher: MAIK Nauka/Interperiodica

ISSN: 1061-9348

Source: Journal of Analytical Chemistry, Vol.60, Iss.4, 2005-04, pp. : 366-368

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Abstract

Calcium-selective electrodes (Ca-SEs) based on the geometric isomers of di-(1,2,3,6-tetrahydrobenzo)-crown esters bearing four ester fragments in the macrocyclic ring were prepared, and their electrochemical properties were studied. It was demonstrated that these electrodes offer promise for medical and biological studies and clinical medicine. The electrodes exhibit high selectivity at crown compound concentrations, ensuring the formation of a 1 : 1 Ca-ionophore complex in the membrane.

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