Abstract
To accurately determine neonicotinoid pesticide residues in goji berries, porous boron nitride nanorods (p-BNNRs) were prepared and used as a new QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) clean-up sorbent. Combined with ultrahigh-pressure liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), a modified QuEChERS method was developed to determine five neonicotinoid pesticide residues in goji berries. In goji berries, the p-BNNRs were shown to have a greater clean-up ability than typical clean-up materials (C18, PSA) The recoveries of the five targets ranged from 78.1 to 117.3% at three fortified levels, and the LODs ranged from 2.2 to 3.7 mu g kg (-1). The results indicate that this approach could be successfully used to quickly determine of the five neonicotinoid insecticide residues in goji berries for risk assessment purposes, demonstrating the applicability and suitability of p-BNNRs for the routine evaluation of neonicotinoid insecticide residues in goji berries. (C)& nbsp;2022 Elsevier B.V. All rights reserved.

Keywords Plus：TANDEM MASS-SPECTROMETRYLIQUID-CHROMATOGRAPHYLC-MS/MSINSECTICIDESNANOSHEETSFOODPERFORMANCEMETABOLITESFIPRONILSAMPLES

Published in JOURNAL OF CHROMATOGRAPHY A，Volume1670；10.1016/j.chroma.2022.462968，MAY 10 2022