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
作者： Gu, Lin 1 ; Ding, Shuhai 1 ; Zhang, Junyu 1 ; Yang, Guangxin 1 ; Wang, Longlong 2 ; Shen, Xiaoshen 2 ; Tian, Liangliang 2 ; Kong, Cong 2 ;
作者机构： 1.Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China
2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
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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