Abstract
A simple two-step protocol is developed to readily transform the surface structure of commercial carbon electrodes. Scanning electron microscopy and Raman spectra illustrate the creation of increasing number of edge plane sites, whereas energy dispersive X-ray spectroscopy illustrates that oxygen content on the surface decreases. With differential pulse voltammetry the modified electrode could simultaneously determine 1,4-hydroquinone and pyrocatechol with the limit of 2.0μM and 5.0μM, respectively. This low cost, easy to fabricate electrode is stable and can be reused, providing an alternative to those carbon nanotube based electrodes for sensitive detection of dihydroxybenzene isomers.
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