Laboratório de Análise de Traços (LAT), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará (UFC), R. Humberto Monte, S/N, Pici, 60455-760 Fortaleza-CE, Brazil.
Laboratório de Análise de Traços (LAT), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará (UFC), R. Humberto Monte, S/N, Pici, 60455-760 Fortaleza-CE, Brazil.
Food Chem. 2019 Nov 15;298:124958. doi: 10.1016/j.foodchem.2019.124958. Epub 2019 Jun 7.
This manuscript is a bibliographic review about analyses of different classes of pesticide in fruits using QuEChERS as sample preparation methodology. The aim is to clarify different trends and facilitate decision-making by the scientific community in order to carry out further studies in this field. It is well known that different countries have different pesticides regulations for maximum level of pesticide residue permitted. The comparative analysis amongst the main producer countries reveals that for some fruits they are not studied enough. Recent improvements to QuEChERS make it possible to minimize the pesticides instability due the matrix pH, and achieving cleaner extracts. Regarding the detection systems, the tandem MS are preferred once they have high sensitivity and selectivity, although traditional techniques (GC-ECD and HPLC-DAD) are still commonly used due to their accessibility and good sensitivity to some pesticides. Also, studies involving metabolites usually show that they are more toxic than their precursor compounds.
这篇手稿是一篇关于使用 QuEChERS 作为样品制备方法分析水果中不同类别的农药的文献综述。目的是阐明不同的趋势，为科学界提供决策便利，以便在该领域开展进一步的研究。众所周知，不同国家对允许的最大农药残留水平有不同的规定。对主要生产国的比较分析表明，对于某些水果，它们的研究还不够充分。最近对 QuEChERS 的改进使得最小化由于基质 pH 值引起的农药不稳定性并获得更清洁的提取物成为可能。关于检测系统，串联质谱由于具有高灵敏度和选择性而更受欢迎，尽管由于其可及性和对某些农药的良好灵敏度，传统技术（GC-ECD 和 HPLC-DAD）仍然被广泛使用。此外，涉及代谢物的研究通常表明它们比其前体化合物更具毒性。
