Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3268
Title: Cadmium ion-selective electrode based on cyanocopolymer
Authors: Gupta K.C.
D'Arc M.J.
Published in: Electroanalysis
Abstract: Cd2+ ion-selective electrode based on poly (styrene-co-acrylonitrile) copolymer (SAN) has been prepared using 8-hydroxyquinoline as an electroactive ionophore and dibutylphthalate as a plasticizing agent. The Cd2+ ion-selective electrode in presence of sodiumtetraphenylborate (NaTPB) as an anion excluder has exhibited a linear response within 4.46 x 10-4-1.0 x 10-1 mol dm-3 activities of Cd2+ ions at a pH variation of 3.20 to 6.80. The observed response time of the prepared electrode was 12 seconds. The electrode has shown a reproducible Nernstian slope of 29 mV decade-1 activities of Cd2+ ions over a period of six months. The selectivity of the prepared electrode for Cd2+ ions in presence of a number of interfering cations is found to be high within the working range of the electrode. However, Pb2+, Cu2+ and Mg2+ ions have shown interference when the activities of the Cd2+ ions in the solution were less than 1 x 10-6 mol dm-3. The electrode sensitivity and working range were found to be dependent on the concentration of the plasticizer and ionophore used in the preparation of the membrane electrode. The electrode can be used as an indicator electrode for the potentiometric titration of Cd2+ ions using ethylenediamine tetraacetic acid (EDTA) as titrant.
Citation: Electroanalysis (2000), 12(17): 1408-1413
URI: https://doi.org/10.1002/1521-4109(200011)12:17<1408
http://repository.iitr.ac.in/handle/123456789/3268
Issue Date: 2000
Keywords: Cd2+ ion-selective electrode
Cyanocopolymer
Sensitivity
Sensor
ISSN: 10400397
Author Scopus IDs: 56106240800
6505860050
Author Affiliations: Gupta, K.C., Polymer Research Laboratory, Department of Chemistry, University of Roorkee, Roorkee-247 667 (U.P.), India
D'Arc, M.J., Polymer Research Laboratory, Department of Chemistry, University of Roorkee, Roorkee-247 667 (U.P.), India
Corresponding Author: Gupta, K.C.; Polymer Research Laboratory, Department of Chemistry, University of Roorkee, Roorkee-247 667, India; email: kcgptfcy@rurkiu.ernet.in
Appears in Collections:Journal Publications [CY]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.