Abstract
The construction, performance characteristics and application of a novel copper (II) membrane sensor based on a new Dimethyl 4, 4′-(o-phenylene) bis(3-thioallophanate) are reported in this paper. The designed sensor exhibited a wide linear response with a slope of 30.3 mV per decade over the concentration range of 9.8 × 10 - 6-1.0 × 10 - 1 M. The potentiometric response is independent on the pH of the solution in the range of 3.1-7.6. The electrode shows a response time of 20 s. The proposed electrode can be used for at least two months without any considerable divergence in potentials. It exhibits very good selectivity relative to a wide variety of alkali, alkaline earth, transition and heavy metal ions. The developed sensor was used for the quantitative determination of Cu (II) ions both in synthetic and real samples. The electrode assembly was also used as an indicator electrode in the potentiometric titration of Cu 2 + with EDTA.
| Original language | English |
|---|---|
| Pages (from-to) | 11-16 |
| Number of pages | 6 |
| Journal | Journal of Molecular Liquids |
| Volume | 174 |
| DOIs | |
| State | Published - Oct 2012 |
Bibliographical note
Funding Information:One of the authors, Niraj Upadhyay is grateful to Lovely Professional University, Jalandhar, Punjab, India , for supporting the laboratory work. Thanks are also to UGC, New Delhi for providing financial assistance for this work in the form of minor research project.
Keywords
- Copper (II)
- Dimethyl 4,4′-(o- phenylene)bis(3-thioallophanate)
- PVC membrane
- Potentiometry
- Sensor
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Spectroscopy
- Physical and Theoretical Chemistry
- Materials Chemistry