期刊
MATERIALS TODAY-PROCEEDINGS
卷 5, 期 3, 页码 9167-9172出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matpr.2017.10.038
关键词
MWCNT; Screen printed electrode; Voltammetry; Wedelolactone
资金
- Department of science and technology (DST), Government of India
- Dayalbagh Educational Institute, Dayalbagh, Agra, India
- DST
Multiwalled carbon nanotube based screen printed sensor was fabricated and utilized for the cyclic voltammetric (CV) study of a phytoconstituent wedelolactone (WDL). The analyte system was studied with Britton Robinson buffer as the supporting electrolyte. Square wave voltammetry (SWV) technique was performed for the optimization of the pH, where the pH (2.5) of the system was optimized for further investigation of the analyte system. Multiwalled carbon nanotube modified screen printed electrode (M-SPE) offered high sensitivity towards WDL as compared to the bare screen printed electrode (SPE). Voltammetric studies with M-SPE revealed the oxidation of WDL with two oxidation peaks (a1 and a2) with Ea1 = 0.08V and Ea2 = 0.5 V with scan rate varying from 10-120 mV/s and exhibits diffusion-controlled process. (C) 2017 Elsevier Ltd. All rights reserved. Selection and Peer-review under responsibility of 6th NATIONAL CONFERENCE ON NANOMATERIALS AND NANOTECHNOLOGY (NCNN VI - 2017).
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