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Zeolitic imidazolate framework-8 as a dispersive solid phase extraction sorbent for simultaneous determination of 145 pesticide residues in polyphenol-rich plants |
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| Authors: | Telin Zhu Peipei Qi Jiao Wang Shanshan Di Zhiwei Wang Hao Xu Huiyu Zhao Qiang Wang Xinquan Wang Chenghui Zhang |
| Institution: | 1. College of Food Science and Engineering, Hainan University, Haikou, P. R. China
Telin Zhu and Peipei Qi contributed equally to this work.;2. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, P. R. China Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Hangzhou, P. R. China Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, P. R. China Telin Zhu and Peipei Qi contributed equally to this work.;3. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, P. R. China Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Hangzhou, P. R. China Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, P. R. China;4. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, P. R. China;5. College of Food Science and Engineering, Hainan University, Haikou, P. R. China |
| Abstract: | Many plants have a high polyphenol content, which causes the matrix effect and makes the analysis of trace pesticide residues highly challenging. A common approach to improving matrix effects is to purify pesticides through the use of sorbents, but this requires a combination of multiple sorbents and extensive use. Zeolitic imidazolate framework-8 is widely used for pesticide analysis due to its high porosity, large specific surface area, and versatility. Here, we established and validated a modified quick, easy, cheap, effective, rugged, and safe method based on a zeolitic imidazolate framework-8 that was used to test the removal ability for polyphenols. To this end, 145 pesticide residues in peppermint, perilla, fennel, and mulberry leaves were analyzed by the modified method coupled with liquid chromatography with tandem mass spectrometry. The mean recoveries of all pesticide residues were in the range of 74.3–103.7%, with mean relative standard deviations ≤9.1% at spiked concentrations of 1, 10, 50, and 100 μg/kg for mulberry leaves. The limits of quantitation of the method ranged from 1 to 50 μg/kg. This study offers a reliable approach for the accurate quantitative analysis of various trace substances in the polyphenol-rich plants. |
| Keywords: | matrix effect pesticides polyphenols tandem mass spectrometry zeolitic imidazolate framework-8 |