期刊论文

Lei, Cunxi

英文

ANALYTICAL METHODS

1759-9660

2016

8

5

1120-1126

10.1039/c5ay02945g

The work was supported by the National S&T support program of China (2015BAD17B02), the National Natural Science Foundation of China (31371767), the Foundation for the Author of This research was supported by the Natural Science Foundation The authors acknowledge the nancial support from the National Natural Science Foundation of China (21545003, and 21275044), the Scienti c Research Fund of Hunan Provincial Education Department of China (15C0244), and the Program for Innovative Research Team of Hunan University (2014-207).

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A graphene (GN) and ionic liquid (IL) modified selenium-doped carbon paste electrode (GN/IL/Se/CPE) was established to simultaneously determine trace Cu(ii) and Sb(iii) by differential pulse voltammetry (DPV). Several parameters which affect the stripping current response were investigated and optimized, including the proportion of Se powder, concentration of hydrochloric acid, deposition time and deposition potential. The DPV curves were recorded by simultaneous deposition of Cu(ii) and Sb(iii) at -0.4 V for 50 s in a supporting electrolyte so...