Rapid and selective detection of tetracyclic antibiotics in environmental water using Cu2+-doped hydrophilic imprinted melamine resin

文献类型： 外文期刊

第一作者： Gu, Lin

作者： Gu, Lin;Ding, Shuhai;Zhang, Junyu;Yang, Guangxin;Ding, Shuhai;Zhang, Junyu;Yang, Guangxin;Wang, Longlong;Shen, Xiaoshen;Tian, Liangliang;Kong, Cong

作者机构：

关键词： Hydrophilic molecularly imprinted resin; Multiple adsorption mechanisms; Environmental samples; Tetracycline antibiotics

期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：4.8； 五年影响因子：4.5 ）

ISSN： 0026-265X

年卷期： 2024 年 201 卷

页码：

收录情况： SCI

摘要： Antibiotic contamination in environmental waters often occurs at low residue levels, necessitating pre -analysis concentration. To address this, we synthesized a hydrophilic molecularly imprinted resin (MIR) using melamine, urea, and formaldehyde as monomers, with oxytetracycline as the template molecule. Enhanced adsorption efficiency was achieved by doping the resin with Cu2+, which forms stable complexes with oxytetracycline. This Cu2+-doped MIR (Cu-MIR) was employed as a selective adsorbent in solid -phase extraction (SPE) to enrich four tetracycline antibiotics (TCs) from aqueous solutions. The optimized parameters for Cu-MIR in environmental water sample analysis resulted in linear detection ranges from 0.20 to 40 ng/mL, recoveries between 80.2 % to 102.4 %, relative standard deviations <= 9.0 %, a detection limit of 0.1 ng/mL, and the enrichment factors were between 4.79-5.13, as determined by HPLC-MS. Given its diverse adsorption mechanisms and specificity, Cu-MIR shows promise for practical applications in real -world sample analysis.

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