A Low-Cost Electrochemical Method for the Determination of Sulfadiazine in Aquaculture Wastewater
文献类型： 外文期刊
作者： Liu, Yang 1 ; Chen, Jianlei 2 ; Hu, Haiyan 3 ; Qu, Keming 2 ; Cui, Zhengguo 2 ;
作者机构： 1.Zhejiang Ocean Univ, Fac Fisheries, Zhoushan 316022, Peoples R China
2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr & Rural Affairs, Qingdao 266071, Peoples R China
3.Zhejiang Ocean Univ, Coll Marine Sci & Technol, Zhoushan 316022, Peoples R China
关键词： antibiotics; sulfadiazine; electrochemical sensors; aquaculture; wastewater
期刊名称：INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH （ 影响因子：4.614； 五年影响因子：4.798 ）
ISSN：
年卷期： 2022 年 19 卷 24 期
页码：
收录情况： SCI
摘要： 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 mu mol/L, and the limit of detection was 6.14 mu mol/L, the recovery rate of standard addition was 87-95%, with satisfactory reproducibility and low interference.
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