M. B. Saleh, A. Gaber
Feb 1, 2001
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0
Influential Citations
25
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Journal
Electroanalysis
Abstract
Sulipride drug N-[(ethyl-1 pyrrolidinyl-2)methyl] methoxy-2 sulfamoyl-5 benzamide was used as a novel electroactive material for the preparation of PVC-based Zn2+-selective electrode. The PVC membrane electrode exhibited a working concentration range of 10−5–10−1 M, with a Nernstian slope of 29.3 mV per decade and a fast response time of 20 s. The valid pH range for the membrane electrode is 4.0–6.5. The electrode exhibits very good selectivity over alkali, alkaline earth and transition metal ions. The nature and composition of the electroactive material and its zinc complex are examined using infrared analysis, elemental analysis and X-ray diffraction techniques. The proposed electrode can be used to determine zinc(II) contents in some rock materials and was applied as indicator in the potentiometric titration of Zn2+ against EDTA for the determination of end point.