Mondal, Subrata ; Sangaranarayanan, M.V. (2013) A novel non-enzymatic sensor for urea using a polypyrrole-coated platinum electrode Sensors and Actuators B: Chemical, 177 . pp. 478-486. ISSN 0925-4005
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Official URL: http://doi.org/10.1016/j.snb.2012.11.031
Related URL: http://dx.doi.org/10.1016/j.snb.2012.11.031
Abstract
The potentiodynamic polymerization of pyrrole is carried out on Pt electrodes using sodium dodecyl sulphate and the coated electrode is employed for sensing of urea non-enzymatically. Employing amperometric and impedimetric methods, urea is estimated in mildly acidic conditions. A detection limit of 40 μM is obtained along with a linearity of 80–1440 μM and a sensitivity of 1.11 μA μM−1 cm−2 from the amperometric data. The Nyquist plot is employed for the construction of the calibration curve from the impedance analysis. The interference of different compounds such as ascorbic acid, uric acid, sodium chloride and calcium chloride is also analyzed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 130500 |
| Deposited On: | 25 Nov 2022 09:36 |
| Last Modified: | 25 Nov 2022 09:36 |
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