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Simultaneous Analysis of 53 Pesticides in Safflower (Carthamus tinctorius L.) by Using LC–MS/MS Coupled with a Modified QuEChERS Technique.
- Source :
- Toxics; Jun2023, Vol. 11 Issue 6, p537, 12p
- Publication Year :
- 2023
-
Abstract
- Objective: An optimized quick, easy, cheap, effective, rugged, and safe (QuEChERS) technique was investigated and compared with the conventional QuEChERS technique for the simultaneous analysis of fifty-three pesticide residues in safflower using ultra-high performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS). Method: Graphitic carbon nitride (g-C<subscript>3</subscript>N<subscript>4</subscript>) consisting of a major amount of carbon and nitrogen with a large surface area was used as a QuEChERS adsorbent instead of graphitized carbon black (GCB) for safflower extraction purification. Validation experiments were performed using spiked pesticide samples, and real samples were analyzed. Results: The linearity of the modified QuEChERS technique was evaluated with high coefficients of determination (R-2) being higher than 0.99. The limits of detection were <10 μg/kg. The spiked recoveries ranged from 70.4% to 97.6% with a relative standard deviation of less than 10.0%. The fifty-three pesticides exhibited negligible matrix effects (<20%). Thiamethoxam, acetamiprid, metolachlor, and difenoconazole were detected in real samples using an established method. Conclusion: This work provides a new g-C<subscript>3</subscript>N<subscript>4</subscript>-based modified QuEChERS technique for multi-pesticide residue analysis in complex food matrices. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23056304
- Volume :
- 11
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Toxics
- Publication Type :
- Academic Journal
- Accession number :
- 164686083
- Full Text :
- https://doi.org/10.3390/toxics11060537