Potentiometric Utility of the New Solid-State Sensor Based on Crowned Ionophore for the Determination of K+

Authors : Barış KEMER, Mustafa ÖZDEMİR

Pages : 521-528

View : 15 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :All solid-state contact poly vinyl chloride insert ignore into journalissuearticles values(PVC); membrane potassium-selective electrode has been developed. The construction of the ion selective electrode membrane was organized using ionophore 4,4`-bis[4``-phenoxyinsert ignore into journalissuearticles values(15-crown-5); methyl]benzyl in PVC cocktail. The potentiometric performance characteristics of the electrode were investigated by a computerized system. The electrode was found highly selective to K+ ions over a wide variety of other cations. The electrode almost exhibited a Nernstian response insert ignore into journalissuearticles values(\ge 55 insert ignore into journalissuearticles values(\pm15); mV/decade of K activity); to K+ within the concentration range 1.5 x 10-1 - 1.0 \times 10-5 M. The operational pH range of the electrode was 5--7. The response time of the electrode was fast insert ignore into journalissuearticles values(
Keywords : Ion selective electrodes, Solid state contact PVC membrane, K determination