Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160, São João del-Rei, Minas Gerais, Brazil.
Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160, São João del-Rei, Minas Gerais, Brazil.
Food Chem. 2022 Jun 30;380:132165. doi: 10.1016/j.foodchem.2022.132165. Epub 2022 Jan 19.
In this study, two sample preparation techniques were evaluated in the simultaneous determination of three compounds with different physicochemical properties, progesterone, pyriproxyfen, and deltamethrin that may be present in the chicken egg. In this procedure, firstly the restricted double access mesoporous polypyrrole was synthesized, which was evaluated as adsorbent in pipette-tip solid phase extraction and dispersive solid phase extraction. After optimizing the extraction parameters, it was found that pipette-tip solid phase extraction was more efficient and, therefore, it was used in the validation and application of the method. The analytical method showed good recoveries, acceptable linearity (r > 0.99), limits of quantification, precision and accuracy, robustness and stability within the limits of the literature. Finally, the developed method was successfully applied in simultaneous determination of analytes in different chicken egg samples. Therefore, this work provided a promising strategy for the extraction of different organic compounds from egg products.
在这项研究中，评估了两种样品前处理技术，用于同时测定可能存在于鸡蛋中的三种具有不同理化性质的化合物，即孕激素、吡虫清和氯菊酯。在该程序中，首先合成了受限双入口介孔聚吡咯，将其作为吸附剂评估，用于管内固相萃取和分散固相萃取。在优化了萃取参数后，发现管内固相萃取更为有效，因此在方法的验证和应用中使用了该技术。分析方法表现出良好的回收率、可接受的线性（r>0.99）、定量限、精密度和准确度、稳健性和稳定性，均在文献范围内。最后，该方法成功地应用于不同鸡蛋样品中分析物的同时测定。因此，这项工作为从鸡蛋产品中提取不同的有机化合物提供了一种很有前途的策略。
