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Taylor and Francis Group, Food Additives and Contaminants: Part A: Chemistry, Analysis, Control, Exposure and Risk Assessment, 8(26), p. 1209-1216, 2009

DOI: 10.1080/02652030902939663

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Sensitive gas chromatographic-mass spectrometric (GC-MS) method for the determination of bisphenol A in rice-prepared dishes

Journal article published in 2009 by A. Zafra-Gómez, J. C. Morales ORCID, O. Ballesteros, A. Navalón
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Certain chemicals possess the potential to modulate endocrine systems, and thereby interfere with reproductive and developmental processes. Bisphenol A is suspected to be one of them. The compound is widely used as a plastic additive, lacquer, resin, or plastic and can usually be found in food samples. An accurate and reproducible gas chromatographic-mass spectrometric (GC-MS) method to detect and measure trace amounts of the compound in rice-prepared dishes samples is proposed. Solid–liquid extraction with acetonitrile was carried out in order to isolate and pre-concentrate the analyte. The solvent was removed and a silylation step using N,O-bis(trimethylsilyl)trifluoro acetamide/pyridine (BSTFA/PYR) was carried out. The silylated compound was identified and quantified by GC-MS using a DB-5 MS column. Bisphenol F was used as a surrogate internal standard. The detection limit was 2.0 ng g while inter- and intra-day variability was less than 6%. Due to the absence of reference materials, the method was validated using standard addition calibration and a recovery assay. Recoveries for spiked samples were between 90% and 105%.