Construction of a magnetic solid-phase extraction method for the analysis of azole pesticides residue in medicinal plants

Ibrahim A Senosy; Zhi-Heng Lu; Dong-Dong Zhou; Talat M Abdelrahman; Min Chen; Lv-Yun Zhuang; Xiao Liu; Yi-Wen Cao; Jian-Hong Li; Zhong- Hua Yang

doi:10.1016/j.foodchem.2022.132743

Construction of a magnetic solid-phase extraction method for the analysis of azole pesticides residue in medicinal plants

Food Chem. 2022 Aug 30:386:132743. doi: 10.1016/j.foodchem.2022.132743. Epub 2022 Mar 19.

Authors

Affiliations

¹ College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan 430070, China; Faculty of Agriculture, Department of Plant Protection, Fayoum University, Fayoum 63514, Egypt.
² College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan 430070, China.
³ College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan 430070, China; Faculty of Agriculture, Department of Plant Protection, Al-Azhar University, Assiut 71524, Egypt.
⁴ College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan 430070, China. Electronic address: yangzhonghua@mail.hzau.edu.cn.

PMID: 35364494
DOI: 10.1016/j.foodchem.2022.132743

Abstract

In this work, a sensitive and cost-effective method for the quantitative analysis of azole pesticides residues in six medicinal plants was established based on magnetic cyclodextrin crosslinked with tetrafluoroterephthalonitrile (Fe₃O₄@TFN-CDPs) coupled with high-performance liquid chromatography (HPLC). Through characterization analysis, the outer shell of Fe₃O₄@TFN-CDPs has observed coating with a network of the polymer and forming a core-shell structure. Under the optimum conditions, the limits of detection (LODs) and limits of qualification (LOQs) of target pesticides were ranged from 0.011 to 0.106 µg Kg^-1 and from 0.036 to 0.354 µg Kg^-1, respectively. Finally, the achieved recoveries of pesticides in six medicinal samples fluctuated from 60.1% to 102.3%. Altogether, this method based on Fe₃O₄@TFN-CDPs composites provided a new idea for the analysis of trace pesticides in complicated matrices.

Keywords: Azole pesticides residue; Cyclodextrin; Magnetic solid-phase extraction; Medicinal plants; Tetrafluoroterephthalonitrile.

MeSH terms

Azoles / analysis
Chromatography, High Pressure Liquid
Limit of Detection
Magnetic Phenomena
Pesticide Residues* / analysis
Pesticides* / analysis
Plants, Medicinal*
Solid Phase Extraction
Tandem Mass Spectrometry

Substances

Azoles
Pesticide Residues
Pesticides