RT info:eu-repo/semantics/article
T1 Effect of the cleaning procedure of Tenax on its reuse in the determination of plasticizers after migration by gas chromatography/mass spectrometry
A1 Rubio Martínez, Laura
A1 Sarabia Peinador, Luis Antonio
A1 Ortiz Fernández, Mª Cruz
K1 Tenax
K1 Plasticizers
K1 Benzophenone
K1 PTV-GC/MS
K1 PARAFAC
K1 Migration test
K1 Chemistry
K1 Mathematics
K1 Química
K1 Matemáticas
AB This paper presents the simultaneous determination of a UV stabilizer (benzophenone (BP)) together with fourplasticizers (butylated hydroxytoluene (BHT), diisobutyl phthalate (DiBP), bis(2-ethylhexyl) adipate (DEHA)and diisononyl phthalate (DiNP)) in Tenax by gas chromatography/mass spectrometry and PARAFAC, usingDiBP-d4 as internal standard.Regulation (EU) No. 10/2011 establishes Tenax as food simulant E for testing specific migration from plasticsinto dry foodstuffs. This simulant must be cleaned before its use to eliminate impurities. Tenax is expensive, soits reuse would save costs.A two-way ANOVA was used to study some parameters affecting the cleaning and the extraction of Tenax. Themost adequate conditions were chosen taking the values of the coefficient of variation and the average recoveryrates of spiked Tenax samples into account.A study to determine if some analytes remain in Tenax when it is reused and the effect that the cleaningprocedure may have in the adsorption capability of Tenax was proposed. This study led to the conclusion thatTenax could not be reused in this multiresidue determination.All the analytes were unequivocally identified in all the stages of this work and trueness was verified at a 95%confidence level in all cases. A calibration based on PARAFAC provided the following values of capability ofdetection (CCβ): 2.28 μg L−1 for BHT, 10.57 μg L−1 for BP, 7.87 μg L−1 for DiBP, 3.04 μg L−1 for DEHA and124.8 μg L−1 for DiNP, with the probabilities of false positive and false negative fixed at 0.05.The migration of the analytes from a printed paper sample into Tenax was also studied. The presence of BHTin the food simulant was confirmed and the amount released of this analyte from the paper was 2.56 μg L−1.
PB Elsevier
SN 0039-9140
YR 2018
FD 2018-05
LK http://hdl.handle.net/10259/4748
UL http://hdl.handle.net/10259/4748
LA eng
NO Ministerio deEconomía y Competitividad (CTQ2014-53157-R) and Junta de Castillay León (BU012P17
DS Repositorio Institucional de la Universidad de Burgos
RD 24-nov-2024