Abstract
In this work, a new method for the determination of 33 carbamates (including some metabolites) in different teas, chamomile, and other herbal products intended for infusions, by ultra-high-performance liquid chromatography tandem mass spectrometry, is proposed. Quick, easy, cheap, effective, rugged, and safe (QuEChERS) methodology was evaluated as sample treatment, and after optimizing the cleanup step (dispersive solid-phase extraction), matrix effects were reduced around 30 % for most of the considered pesticides in relation to those obtained with the extraction procedure without an additional cleanup. The method allowed recoveries between 74 and 101 %, with relative standard deviations lower than 7 % at three concentration levels (5, 20, and 50 μg kg−1). Limits of quantification ranged from 1.9 to 4.0 μg kg−1, therefore below maximum residue limits established for this type of samples.
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Abbreviations
- MeCN:
-
Acetonitrile
- ALD:
-
Aldicarb
- ALDSFN:
-
Aldicarbsulfone
- ALDSFX:
-
Aldicarbsulfoxide
- ASL:
-
Asulam
- BFU:
-
Benfurocarb
- BY:
-
Benomyl
- BTH:
-
Benthiocarb
- CAR:
-
Carbaryl
- CRB:
-
Carbamate
- CBZ:
-
Carbendazim
- CF:
-
Carbofuran
- CY:
-
Cymoxanil
- dSPE:
-
Dispersive solid-phase extraction
- DETH:
-
Diethofencarb
- ESI:
-
Electrospray ionization
- ETH:
-
Ethiofencarb
- ETHSFN:
-
Ethiofencarbsulfone
- ETHSFX:
-
Ethiofencarbsulfoxide
- EFSA:
-
European Food Safety Agency
- FEN:
-
Fenobucarb
- FNX:
-
Fenoxycarb
- FAO:
-
Food and agriculture organization
- FURA:
-
Furathiocarb
- GC:
-
Gas chromatography
- 3-CF:
-
3-Hydroxycarbofuran
- ISO:
-
Isoprocarb
- LOD:
-
Limit of detection
- LOQ:
-
Limit of quantification
- LC:
-
Liquid chromatography
- MS:
-
Mass spectrometry
- ME:
-
Matrix effect
- MRLs:
-
Maximum residue limits
- MeOH:
-
Methanol
- MTH:
-
Methiocarb
- MTHSFN:
-
Methiocarbsulfone
- MTHSFX:
-
Methiocarbsulfoxide
- MTY:
-
Methomyl
- METOL:
-
Metolcarb
- MRM:
-
Multiple reaction monitoring
- NP:
-
Napropamid
- OX:
-
Oxamyl
- PIR:
-
Pirimicarb
- PIRDES:
-
Pirimicarbdesmethyl
- Q:
-
Precursor ion
- PSA:
-
Primary–secondary amine
- PR:
-
Promecarb
- PRM:
-
Propamocarb
- I:
-
Product ion
- PX:
-
Propoxur
- PY:
-
Pyraclostrobin
- QuEChERS:
-
Quick, easy, cheap, effective, rugged, and safe
- S/N:
-
Signal to noise ratio
- SPE:
-
Solid-phase extraction
- QqQ:
-
Triple quadrupole
- TH:
-
Thiodicarb
- UHPLC:
-
Ultra-high-performance liquid chromatography
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Acknowledgments
JFHP thanks the Ministry of Economy and Competitiveness of the Spanish Government for a Juan de la Cierva postdoctoral contract. The authors gratefully acknowledge the financial support of the Andalusia Government (Excellence Project Ref: P12-AGR-1647).
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Conflict of Interest
David Moreno-González declares that he has no conflict of interest. José F. Huertas-Pérez declares that he has no conflict of interest. Laura Gámiz-Gracia declares that she has no conflict of interest. Ana M. García-Campaña declares that she has no conflict of interest. This article does not contain any studies with human or animal subjects.
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David Moreno-González and José F. Huertas-Pérez contributed equally to this work
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Moreno-González, D., Huertas-Pérez, J.F., Gámiz-Gracia, L. et al. High-Throughput Methodology for the Determination of 33 Carbamates in Herbal Products by UHPLC–MS/MS. Food Anal. Methods 8, 2059–2068 (2015). https://doi.org/10.1007/s12161-014-9998-0
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DOI: https://doi.org/10.1007/s12161-014-9998-0