Yanhui Pan, L. Shang, Faqiong Zhao
2015
Citations
0
Influential Citations
46
Citations
Journal
Electrochimica Acta
Abstract
Abstract A novel electrochemical sensor was presented for the determination of 4-nonyl-phenol (NP), which was constructed by molecularly imprinted polymer (MIP), nitrogen-doped graphene nanoribbons (NGNRs) and ionic liquid (IL). The NGNRs were prepared by unzipping multiwalled carbon nanotubes, followed by hydrothermal treatment with ammonium–NaOH solution. The MIP was prepared by electropolymerization at the NGNRs-IL composite film modified electrode, using NP as template, o-phenylenediamine and o-toluidine as copolymerization monomers. The resulting sensor MIP/NGNRs-IL/GCE showed good performance. Under the optimized conditions, the peak current was linear to NP concentration in the range from 0.04 to 6 μM. The sensitivity and detection limit were 3.4 μA/μM and 8 nM (S/N = 3), respectively. The electrochemical sensor was applied to the determination of NP in real samples and satisfactory results were obtained.