Journal
FOOD CHEMISTRY
Volume 329, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.127159
Keywords
Dispersive solid-phase extraction; Matrix effect; Pesticides; PCX; Polyvinylpolypyrrolidone
Funding
- National Key R&D Program of China [2018YFC1602402]
- Chinese Academy of Medical Science Research Unit Program [2019-12 M-5-024]
- National Nature Science of Foundation of China [21607035]
- Fujian science and technology plan project [2019Y0045, 2018 N2004]
- Scientific Research Fund of Wuyi University [XD201801]
Ask authors/readers for more resources
The widespread use of neonicotinoids (NEOs) and fipronils (FIPs) as insecticides in modern agriculture has been widely investigated because of their adverse effects on human health. This study aimed to develop an accurate quantitative approach to analyze NEOs and FIPs in tea by using a modified QuEChERS method based on dispersive solid-phase extraction procedure coupled with liquid chromatography-high resolution mass spectrometry. To minimize matrix interferences largely, we selected polyvinylpolypyrrolidone (PVPP) and strong caionic exchange adsorbent (PCX) as dispersive adsorbents to eliminate polyphenols and caffeine from tea extract, respectively. Under optimal conditions, a slight matrix effect was observed for NEOs and FIPs due to the highest reductions of polyphenols and caffeine (94% and 88%, respectively). The method was validated by the European Medicines Agency and Eurachem guidelines and was successfully applied to tea samples for NEOs and FIPs analysis. NEOs and FIPs were commonly detected in tea.
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
Share Paper
