Journal
MICROCHIMICA ACTA
Volume 186, Issue 4, Pages -Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-019-3376-y
Keywords
Simultaneous determination; Electroanalysis; Electropolymerization; Differential pulse voltammetry
Categories
Funding
- Universiti Putra Malaysia Research Grant [GP IPS/2016/9512900]
- Organization for Women in Science for the Developing World (OWSD)
- Sida (Swedish International Development Cooperation Agency)
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A nanocomposite consisting of electrochemically reduced graphene oxide, poly(Eriochrome black T) and gold nanoparticles (ERGO-pEBT/AuNPs) was prepared for the simultaneous detection of resorcinol (RC), catechol (CC), and hydroquinone (HQ). The electrochemical oxidation of HQ, CC, and RC was analysed by using cyclic voltammetry and differential pulse voltammetry. Three well-separated potentials were found at 166, 277, and 660mV (vs. Ag/AgCl) for HQ, CC, and RC, respectively The linear ranges were 0.52-31.4, 1.44-31.2, and 3.8-72.2M for HQ, CC, and RC, respectively. The limits of detections (LODs) for both individual and simultaneous detections are negligibly different are (15, 8, and 39nM, respectively).
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