ISSN: (Online) 2321 -4155
ISSN: (Print) 2320 -7000

JOURNAL OF INDIAN RESEARCH
VOLUME : 3, ISSUE : 2, April-June, 2015 (ISSN No. : 2321-4155)
 
A DYNAMIC NICKEL SELECTIVE POLY(VINYL CHLORIDE) MEMBRANE BASED ON N-(4-(2-THIENYL)-1,3-THIAZOL-2-YL) THIOUREA AS IONOPHORE
Arpit Singh & D.S.Tyagi
 
ABSTRACT
In the present study, N-(4-(2-thienyl)-1,3-thiazol-2-yl)thiourea (ionophore) has been used as an ionic carrier for the fabrication of Ni(II) selective poly(vinyl chloride) membrane electrode. The electrode based on bis-(2-ethylhexyl) sebacate(BEHS) used as plasticizer was found to be the best over other tested plasticizers. The electrode has a wide linear concentration range of 4.0 x 10-8 – 1.0 x 10-1 M, fast response time (5s) and wide pH range (2.7 – 8.8). The electrode was successfully used as an indicator electrode for the titration of Ni(II) ion solution with standard EDTA solution.
 
KEYWORD
Ion-selective electrode, ionophore, Nickel, potentiometry.
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