Determination of Benzimidazoles in Chicken and Egg Samples by Urea-Based Covalent Organic Polymer (UCOP) Pipette Tip-Solid-Phase Extraction (PT-SPE) and High-Performance Liquid Chromatography-Tandem Mass Spectrometry (HPLC-MS)
文献类型： 外文期刊
作者： Xiang, Jian Jun 1 ; Yuan, Li-Juan 1 ; Liao, Qie Gen 1 ; Zhang, Da Wen 1 ; Luo, Lin Guang 1 ;
作者机构： 1.Jiangxi Acad Agr Sci, Minist Agr & Rural Affairs China, Agr Prod Qual Safety & Stand Inst, Key Lab Qual & Safety Control Poultry Prod, Nanchang, Peoples R China
关键词： Benzimidazoles; chicken; eggs; high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS); pipette tip-solid-phase extraction (PT-SPE); urea-based covalent organic polymer (UCOP); >
期刊名称：ANALYTICAL LETTERS （ 影响因子：2.0； 五年影响因子：1.8 ）
ISSN： 0003-2719
年卷期： 2023 年
页码：
收录情况： SCI
摘要： A urea-based covalent organic polymer (UCOP), was synthesized using 1,4-phenylene diisocyanate (PPDI) and 4,4 & PRIME;,4 & DPRIME;-(1,3,5-triazine-2,4,6-triyl) trianiline (TTTA) and characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and nitrogen adsorption-desorption isotherm analysis. The prepared material was employed as an adsorbent for pipette tip-solid-phase extraction (PT-SPE) for benzimidazoles before high-performance liquid chromatography-tandem mass spectrometry analysis (HPLC-MS). The parameters affecting the isolation efficiency, including salt concentration, sample pH, mass of adsorbent, and types and volumes of eluent, were optimized. Using these conditions, PT-SPE provided good linearity from 0.1 to 10 & mu;g kg(-1) with low limits of detections (LODs) of 0.02 & mu;g kg(-1) together with good precision (relative standard deviations from 4.2 to 8.3%) and accuracy (recoveries from 76.2 to 84.8%). The results demonstrate that the urea-based covalent organic polymer has the potential for the enrichment of trace benzimidazoles.
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