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Title: Field-amplified sample injection-micellar electrokinetic capillary chromatography for the analysis of bisphenol A, bisphenol F, and their diglycidyl ethers and derivatives in canned soft drinks
Author: Gallart Ayala, Hèctor
Núñez Burcio, Oscar
Moyano Morcillo, Encarnación
Galcerán Huguet, M. Teresa
Keywords: Begudes carbòniques
Química dels aliments
Envasament d'aliments
Carbonated beverages
Food composition
Food packaging
Issue Date: 26-Apr-2010
Publisher: Wiley-VCH
Abstract: Conditions were established for the separation and analysis of Bisphenol A (BPA), Bisphenol F (BPF), and their diglycidyl ethers, by micellar electrokinetic capillary chromatography (MECC). Good resolution was obtained for all compounds, although in order to achieve the separation of ortho-ortho, ortho-para, and para-para isomers of Bisphenol F diglycidyl ether (BFDGE), BFDGE¿2H2O and BFDGE¿2HCl, it was necessary to use a 25 µm I.D. fused-silica capillary. To increase sensitivity, a field amplified sample injection (FASI)-MECC method was developed using 10 mM sodium dodecyl sulfate (SDS) solution as injection matrix and a 75 µm I.D. fused-silica capillary. Instrumental quality parameters such as limits of detection (0.999), and run-to-run and day-to-day precisions (relative standard deviations (RSD) values lower than 12.5%) were determined. Finally, the suitability of the FASI-MECC method for the analysis of BPA, BPF and their diglycidyl ethers in canned soft-drinks was evaluated. Quantitation was performed by matrix-matched calibration using a plastic-bottled isotonic drink as matrix. The results showed that FASI-MECC is an economic method for the screening and quantitation of these kinds of compounds in soft-drink beverages, with no loss of reproducibility, and effective at concentrations lower than the specific migration level (SML) values established by the European Union.
Note: Versió postprint del document publicat a:
It is part of: Electrophoresis, 2010, vol. 31, num. 9, p. 1550-1559
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ISSN: 0173-0835
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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