Effect of simultaneous existence of two ion-exchangers with opposite charges of lipophilic groups

Citation
Al. Smirnova et al., Effect of simultaneous existence of two ion-exchangers with opposite charges of lipophilic groups, ELECTROANAL, 11(10-11), 1999, pp. 763-769
Citations number
31
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ELECTROANALYSIS
ISSN journal
10400397 → ACNP
Volume
11
Issue
10-11
Year of publication
1999
Pages
763 - 769
Database
ISI
SICI code
1040-0397(199907)11:10-11<763:EOSEOT>2.0.ZU;2-5
Abstract
The effect of simultaneous existence in PVC membrane of both anion- and cat ion-exchanger taken in optimal molar ratio is shown for cation-selective me mbranes containing calcium (ETH 129, ETH 5234) and magnesium (ETH 5214, ETH 4030) ionophores. The presence of cation- as well as anion-exchanger is pr eferable for improvement of membrane selectivity. Potentiometric properties for calcium and magnesium selective membranes containing both ion-exchange rs are compared to the results obtained by impedance spectroscopic method.