Simultaneous determination of neonicotinoids and fipronils in tea using a modified QuEChERS method and liquid chromatography-high resolution mass spectrometry.
Caffeine
/ chemistry
Chromatography, High Pressure Liquid
/ methods
Chromatography, Liquid
/ methods
Food Analysis
/ methods
Food Contamination
/ analysis
Insecticides
/ analysis
Neonicotinoids
/ analysis
Polyphenols
/ chemistry
Pyrazoles
/ analysis
Reproducibility of Results
Solid Phase Extraction
/ methods
Tandem Mass Spectrometry
/ methods
Tea
/ chemistry
Acetamiprid (PubChem CID: 213021)
Caffeine (PubChem CID: 2519)
Clothianidin (PubChem CID: 86287519)
Dinotefuran (PubChem CID: 197701)
Dispersive solid-phase extraction
Fipronil (PubChem CID: 3352)
Fipronil sulfone (PubChem CID: 3078139)
Imidacloprid (PubChem CID: 86418)
Matrix effect
Nitenpyram (PubChem CID: 3034287)
PCX
Pesticides
Polyvinylpolypyrrolidone
Thiacloprid (PubChem CID: 115224)
Thiamethoxam (PubChem CID: 5821911)
Journal
Food chemistry
ISSN: 1873-7072
Titre abrégé: Food Chem
Pays: England
ID NLM: 7702639
Informations de publication
Date de publication:
01 Nov 2020
01 Nov 2020
Historique:
received:
16
02
2020
revised:
11
05
2020
accepted:
25
05
2020
pubmed:
5
6
2020
medline:
29
9
2020
entrez:
5
6
2020
Statut:
ppublish
Résumé
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 cationic 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.
Identifiants
pubmed: 32497845
pii: S0308-8146(20)31021-9
doi: 10.1016/j.foodchem.2020.127159
pii:
doi:
Substances chimiques
Insecticides
0
Neonicotinoids
0
Polyphenols
0
Pyrazoles
0
Tea
0
Caffeine
3G6A5W338E
fipronil
QGH063955F
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
127159Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.