Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
13471806 | Food Chemistry | 2020 | 27 Pages |
Abstract
A sample preparation method, QuEChERS extraction combined with a magnetic micro dispersive solid phase extraction (MµdSPE), was optimized and evaluated for the trace analysis of 9 brominated flame retardants in red fruit samples (strawberries, blueberries, and raspberries) using gas chromatography-mass spectrometry. Magnetic nanomaterials were used as sorbents providing an extraction of the target compounds. Linearity was established for all the analytes (from 10 to 200â¯Âµgâ¯kgâ1). Seven concentration levels were analyzed with three measurements at each concentration. Linear responses (R2â¯>â¯0.99) were obtained, recoveries of all target analytes were within the range of 65-141%, relative standard deviations were <20% at all three spiking levels, while intraday and interday precisions were below 20%. This study demonstrated that the new sample preparation with magnetic nanoparticles could potentially be expanded to extract and pre-concentrate the BFRs in different red fruit samples. The method has been successfully applied to study BFRs in 12 samples from conventional and organic farming.
Related Topics
Physical Sciences and Engineering
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Analytical Chemistry
Authors
VirgÃnia Cruz Fernandes, Maria Freitas, João G. Pacheco, Valentina Fernandes Domingues, Cristina Delerue-Matos,