Simultaneous detection of indole and 3‐methylindole using boron‐doped diamond electrodes
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2016-09-21 |
| Journal | physica status solidi (a) |
| Authors | Dounia Belghiti, Emmanuel Scorsone, J. de Sanoit, P. Bergonzo |
| Institutions | Commissariat à l’Énergie Atomique et aux Énergies Alternatives, CEA LIST |
| Citations | 21 |
Abstract
Section titled “Abstract”The simultaneous electrodetection of indole and 3‐methylindole was investigated in this paper. The detection was performed using a boron‐doped diamond (BDD) electrode to take advantage of its remarkable electrochemical properties (Fujishima et al., Diamond Electrochemistry (Elsevier, 2005) . In order to improve the selectivity between indole and 3‐methylindole, square‐wave voltammetry (SWV) was used. We showed that BDD electrodes fouled either from oxidation of indole or 3‐methylindole could be efficiently reactivated in LiClO 4 aqueous solutions using trains of short anodic and cathodic pulses applied to the working electrode. We were able with this approach to measure simultaneously both indole and 3‐methylindole in aqueous solutions in the range of 10-500 μM with the limits of detection (LOD) found to be 3 × 10 −2 μM for indole and 5 × 10 −2 μM for 3‐methylindole. Both indoles were also detected successfully following extraction from pork fat. This work opens up the way toward systematic detection of indole and 3‐methylindole in processed foodstuffs, with a strong industrial interest for the detection of boar taint in pork meat.
Tech Support
Section titled “Tech Support”Original Source
Section titled “Original Source”References
Section titled “References”- 2005 - Diamond Electrochemistry
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