Abstract
A simple and highly sensitive method for the electrochemical determination of olaquindox (OLA) was developed, which was carried out on the multi-walled carbon nanotubes (MWCNT) modified glassy carbon electrode (MWCNT/GCE) using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results showed that MWCNT remarkably enhanced the reduction of OLA, which improved the cathodic peak current of OLA significantly. Under the optimum condition, the linear range for the calibration curve was 0.3–18.0μgmL−1 with a detection limit of 0.26μgmL−1. The MWCNT/GCE showed a well reproducibility and the relative standard deviation (R.S.D.) was 3.5% (n=9). And a great anti-interference ability of the MWCNT/GCE was also observed. Finally, the MWCNT/GCE was satisfactorily employed to analyze some synthetic and real water samples.
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