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A glassy carbon electrode modified with N-doped carbon dots for improved detection of hydrogen peroxide and paracetamol

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A Correction to this article was published on 11 June 2019

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Abstract

Nitrogen doped carbon dots (NCDs) were synthesized using a low temperature approach and used to modify a glassy carbon electrode (GCE) via dipping. The oxygen groups on the surface of the NCDs, and the charge delocalization of the NCDs warrant an excellent electrocatalytic activity of the GCE toward oxidation of paracetamol (PA) and reduction of H2O2. PA and H2O2 were detected at 0.34 V and −0.4 V (both vs. Ag/AgCl) using differential pulse voltammetry and amperometric I-T measurement, respectively. The modified GCE has a linear response to PA in the 0.5 to 600 μM concentration range, and to H2O2 in the 0.05 μM to 2.25 mM concentration range. The detection limits are 157 nM and 41 nM, respectively. In our perception, the modified GCE holds promise for stable, selective and sensitive determination of PA and H2O2 in pharmaceutical analysis.

Nitrogen doped carbon dots (NCDs) were synthesized and used to modify a glassy carbon electrode. Surface functional groups on NCDs can trigger electrocatalytic reactions toward paracetamol oxidation and H2O2 reduction with high sensitivities.

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  • 11 June 2019

    The authors of “A glassy carbon electrode modified with N-doped carbon dots for improved detection of hydrogen peroxide and paracetamol (Microchimica Acta 185, no. 2 (2018): 87)” wish to replace the incorrect images of Fig. 1C, 1D shown below.

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Acknowledgements

This work has been financially supported by Research Foundation from Hangzhou Dianzi University (KYS205617071) and Zhejiang Province Natural Science Foundation of China (LQ18E010001).

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Author notes

  1. Li Fu and Aiwu Wang contributed equally to this work.

Authors and Affiliations

  1. College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, People’s Republic of China

    Li Fu & Weitao Su

  2. Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, Hong Kong

    Aiwu Wang

  3. Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry, Hubei Normal University, Huangshi, 435002, People’s Republic of China

    Guosong Lai & Aimin Yu

  4. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China

    Cheng-Te Lin & Jinhong Yu

  5. Department of Chemistry and Biotechnology, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia

    Aimin Yu

  6. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, People’s Republic of China

    Zhong Liu

  7. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, People’s Republic of China

    Kefeng Xie

Authors
  1. Li Fu
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  2. Aiwu Wang
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  9. Weitao Su
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Correspondence to Li Fu or Weitao Su.

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Fu, L., Wang, A., Lai, G. et al. A glassy carbon electrode modified with N-doped carbon dots for improved detection of hydrogen peroxide and paracetamol. Microchim Acta 185, 87 (2018). https://doi.org/10.1007/s00604-017-2646-9

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