Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (12): 2750-2758.DOI: 10.3969/j.issn.1004-1524.2022.12.18

• Quality and Safety of Agricultural Products • Previous Articles     Next Articles

Determination of jingangmycin and propiconazole in Atractylodes macrocephala by solid phase extraction/ultrahigh performance liquid chromatography-tandem mass spectrometry

ZHANG Chunrong(), GUO Qian, KONG Liping, WU Yuanyuan, LIN Qin, XU Zhenlan, TANG Tao()   

  1. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products/Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture and Rural Affairs/Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2021-09-28 Online:2022-12-25 Published:2022-12-26
  • Contact: TANG Tao

Abstract:

A simple and sensitive method was developed for the determination of jingangmycin A and propiconazole in fresh and dry samples of Atractylodes macrocephala by solid phase extraction/ultrahigh performance liquid chromatography-tandem mass spectrometry (SPE/UPLC-MS/MS). The samples were extracted with methanol/water(9∶1, V/V),purified with an Oasis HLB column (for jingangmycin A) and Cleanert AQ C18 column (for propiconazole),and separated on a HSS T3 column,finally analyzed in multiple reaction monitoring (MRM) mode via positive electrospray ionization (ESI+). Under the optimum condition,the calibration curves for the analyte were linear in the range of 0.000 1-0.1 mg·L-1,with correlation coefficients(R2) not less than 0.999 6. At spiked levels of 0.01,0.5 and 5.0 mg·kg-1,the recoveries for jingangmycin A in two matrices were in the range of 72.4%-85.8% with relative standard deviations(RSD) of 0.89%-6.20%; At spiked levels of 0.005,0.1 and 1.0 mg·kg-1,the recoveries for propiconazole in two matrices were in the range of 88.1%-98.9% with relative standard deviations(RSD) of 1.4%-4.8%. The method was simple, reproducible, accurate, precise and the detection limit could meet the requirements of pesticide residue analysis.

Key words: jingangmycin A, propiconazole, Atractylodes macrocephala, ultrahigh performance liquid chromatography-tandem mass spectrometry, residues

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