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A Low-Cost Electrochemical Method for the Determination of Sulfadiazine in Aquaculture Wastewater

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  • Yang Liu

    (Faculty of Fisheries, Zhejiang Ocean University, Zhoushan 316022, China
    Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China)

  • Jianlei Chen

    (Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China)

  • Haiyan Hu

    (College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China)

  • Keming Qu

    (Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China)

  • Zhengguo Cui

    (Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China)

Abstract

As the concept of green development spreads worldwide, environmental protection awareness for production and life has been continuously strengthened. Antibiotic residues in aquaculture wastewaters aggravate environmental pollution and threaten human health. Therefore, the detection of residual antibiotics in wastewater is crucial. In this paper, a new, simple, and low-cost method based on the glassy carbon electrode electrochemical sensor for the detection of sulfadiazine in aquaculture wastewater was developed without using complex materials to modify the electrode surface, to detect sulfadiazine which electrochemically oxidizes directly. The electrochemical performance of the sensor was studied and optimized with differential pulse voltammetry and cyclic voltammetry in the three-electrode system. The optimal electrolyte was acetic acid-sodium acetate buffer, and the optimal pH was 4.0. Finally, based on the optimized conditions, the newly established method showed satisfactory results for detecting sulfadiazine in aquaculture wastewater. The concentration of sulfadiazine and the peak current intensity showed a linear relationship in the range of 20 to 300 μmol/L, and the limit of detection was 6.14 μmol/L, the recovery rate of standard addition was 87–95%, with satisfactory reproducibility and low interference.

Suggested Citation

  • Yang Liu & Jianlei Chen & Haiyan Hu & Keming Qu & Zhengguo Cui, 2022. "A Low-Cost Electrochemical Method for the Determination of Sulfadiazine in Aquaculture Wastewater," IJERPH, MDPI, vol. 19(24), pages 1-10, December.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:24:p:16945-:d:1005925
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