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Ultrasensitive voltammetric determination of catechol at a gold atomic cluster/poly(3,4-ethylenedioxythiophene) nanocomposite electrode.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nambiar, Sindhu R. Aneesh, Padamadathil K. Rao, Talasila Prasada |
| Copyright Year | 2013 |
| Abstract | A novel gold atomic cluster-poly(3,4-ethylenedioxythiophene) (AuAC/PEDOT/Au) nanocomposite modified gold electrode has been designed for the trace level sensing of catechol. The addition of copper(II) enhanced the electro-catalytic oxidation of catechol via the formation of copper(I). The electrochemically synthesized PEDOT/Au and the AuAC/PEDOT/Au hybrid films were characterized by electrochemical and morphological methods. Under optimal conditions the nanocomposite modified electrode offers a wider calibration range of 1 × 10(-4) to 10 μM with a lowest detection limit of 6.3 pM for catechol. Moreover, the developed electrochemical sensor exhibited good selectivity and acceptable reproducibility (1.23% for 1 nM of catechol) and could be used for the routine detection and quantification of catechol in natural water samples. To gain a better understanding of such an excellent sensor performance achieved with this electrode, studies were undertaken to pinpoint electrode kinetics of charge transfer processes. |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c3an00518f |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/an/c3/c3an00518f/c3an00518f.pdf |
| PubMed reference number | 23826610 |
| Alternate Webpage(s) | https://doi.org/10.1039/c3an00518f |
| Journal | Medline |
| Volume Number | 138 |
| Issue Number | 17 |
| Journal | The Analyst |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
