Application of matrix solid-phase dispersion followed by GC–MS/MS to the analysis of emerging contaminants in vegetables
A multiresidue method for the determination of 17 emerging contaminants in vegetables was developed based on ultrasound-assisted matrix solid-phase dispersion (MSPD). The analysis was performed using isotope dilution gas chromatography tandem mass spectrometry. In the development of the MSPD procedure, different parameters such as sonication and the type of sorbent or extraction solvent were assayed. Manual and in situ derivatization was assayed and the chromatographic response was higher when the reaction takes place in the injection port. The limits of detection obtained for the studied compounds were in the range of 0.1-0.4ngg(-1) for the different vegetables analyzed. The developed method was applied to vegetables obtained from several local markets. At least one of the organophosphates was detected in the analyzed samples at levels ranging from 0.6 to 4.6ngg(-1) and bisphenol A was detected in all the samples at concentration up to 16ngg(-1).
Main Authors: | Albero Romano, María Beatriz, Sánchez-Brunete, C., Miguel Gómez, María Esther, Tadeo Lluch, José Luis |
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Format: | artículo biblioteca |
Language: | English |
Published: |
Elsevier
2017
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Subjects: | Emerging contaminants, Gas chromatography-tandem mass, Spectrometry, Ultrasound-assisted matrix solid-phase, Dispersion, Vegetables, |
Online Access: | http://hdl.handle.net/20.500.12792/5571 http://hdl.handle.net/10261/291196 |
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