Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 67, Issue 6, Pages 1760-1770Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.8b04980
Keywords
UiO-66; dispersive solid-phase extraction; organophosphorus pesticides; gas chromatography-tandem mass spectrometry; vegetable oil
Funding
- Research Foundation for Young Scientists of State Key Laboratory of Food Science and Technology, Nanchang University, China [SKLF-QN-201507]
- Natural Science Foundation of China [31660483, 31560478]
- Objective-oriented Project for the State Key Laboratory of Food Science and Technology in Nanchang University [SKLF-ZZB-201718]
- Science and Technology Program of the Education Department of Jiangxi Province [GJJ14221]
- Singapore Ministry of Education Academic Research Fund Tier 1 [R-143-000-A40-114]
- Nanchang University
Ask authors/readers for more resources
A QuEChERS-type method without matrix interference was designed and developed to determine organophosphorus pesticide residues in edible vegetable oils, based on dispersive solid-phase extraction with cleanup using UiO-66 as sorbent. Microporous UiO-66 directly and selectively adsorbed organophosphorus pesticides and excluded interfering compounds. Clean analytes were obtained by elution and analyzed using gas chromatography-tandem mass spectrometry. The dispersive solid-phase extraction conditions (amount of adsorbent, extraction time, desorption solvent volume, and elution time) were optimized. The limits of detection of the pesticides in vegetable oils were 0.16-1.56 ng/g. Under optimized conditions, the average pesticide recoveries were 81.1-113.5%. The intraday and interday relative standard deviations for analyte recovery were <8.2 and <13.9%, respectively. Thus, the method is reliable and could detect organophosphorus pesticide residues in edible vegetable oils. Furthermore, UiO-66 can be easily recycled and reused at least 10 times, reducing the cost of analysis.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available