Electrochemical detection of chloramphenicol using palladium nanoparticles decorated reduced graphene oxide

Wenwen Yi, Zhongping Li*, Chuan Dong, Hung Wing LI, Junfen Li

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

87 Citations (Scopus)


In this work, we developed a highly selective detection of chloramphenicol (CAP)using palladium nanoparticles decorated graphene oxide (rGO/PdNPs)nanocomposite. Moreover, the successful formation of rGO/PdNPs nanocomposite was verified by TEM, UV–Vis, FT-IR spectra, X-ray photoelectron spectroscopy (XPS). The electrochemical characteristics of the electrochemical sensor were evaluated by differential pulse voltammetry (DPV)and cyclic voltammetry (CV). Furthermore, the rGO/PdNPs modified GCE displayed an excellent electroactivity in the presence of chloramphenicol as compared to that of modified and unmodified glassy carbon electrode (GCE). It showed an excellent performance with a linear response range of 50–1000 nM and the low detection limit of 50 nM (S/N = 3). In addition, the present promising sensor exhibited high sensitivity, good stability as well as remarkable reproducibility, and satisfactory recovery rate for CAP electrochemical detection in real samples.

Original languageEnglish
Pages (from-to)774-783
Number of pages10
JournalMicrochemical Journal
Publication statusPublished - Jul 2019

Scopus Subject Areas

  • Analytical Chemistry
  • Spectroscopy

User-Defined Keywords

  • Chloramphenicol
  • Electrochemical sensor
  • Palladium nanoparticles (PdNPs)
  • Reduced graphene oxide


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