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Determination of Xinjunan pesticide residue in foodstuffs of plant origin by a modified QuEChERS method and ultra performance liquid chromatography-tandem mass spectrometry.
- Source :
-
LWT - Food Science & Technology . Nov2021, Vol. 151, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- In this study, the determination of Xinjunan pesticide residue in apple, cottonseed, pepper, tomato, grape and pear by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was established. The samples were purified by a modified QuEChERS method. The analysis was performed by UPLC-MS/MS in multiple reaction monitoring (MRM) mode. Acetonitrile and 1.0 mmol L−1 ammonium acetate (containing 0.1% formic acid) were used as the mobile phases. The external standard method was used for quantification. The average recoveries were 75.6–106.2% with an RSD ≤8.8%. The limits of quantification (LOQs) were 2.0 μg/kg for apple, pepper, tomato, grape and pear and 10.0 μg/kg for cottonseed. The proposed method is fast, sensitive, simple, and accurate and could be used for the quantification of Xinjunan pesticide residue in foodstuffs of plant origin. [Display omitted] • First determination of Xinjunan residue in food by UPLC-MS/MS. • The accuracy of the results is based on MRM mode. • The samples were purified by a modified QuEChERS method. • The structure analysis of Xinjunan was carried out for the first time. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00236438
- Volume :
- 151
- Database :
- Academic Search Index
- Journal :
- LWT - Food Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 152252674
- Full Text :
- https://doi.org/10.1016/j.lwt.2021.112101