A voltammetric determination of caffeic acid in red wines based on the nitrogen doped carbon modified glassy carbon electrode

作者：Karikalan Natarajan; Karthik Raj; Chen Shen Ming; Chen Hsi An

来源：Scientific Reports, 2017, 7(1): 45924.

DOI：10.1038/srep45924

We reported an electrochemical determination of caffeic acid (CA) based on the nitrogen doped carbon (NDC). The described sensor material was prepared by the flame synthesis method, which gave an excellent platform for the synthesis of carbon nanomaterials with the hetero atom dopant. The synthesized material was confirmed by various physical characterizations and it was further characterized by different electrochemical experiments. The NDC modified glassy carbon electrode (NDC/GCE) shows the superior electrocatalytic performance towards the determination of CA with the wide linear concentration range from 0.01 to 350 ae M. It achieves the lowest detection limit of 0.0024 mu M and the limit of quantification of 0.004 rho M. The NDC/GCE-CA sensor reveals the good selectivity, stability, sensitivity and reproducibility which endorsed that the NDC is promising electrode for the determination of CA. In addition, NDC modified electrode is applied to the determination of CA in red wines and acquired good results.

• 出版日期2017-4-5