2026-09-08T06:52:58Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/61632022-11-24T11:57:09Zcom_10259_4249com_10259_5086com_10259_2604com_10259_3843com_10259_3591com_10259.4_106com_10259_6164com_10259_4534col_10259_6165col_10259_4250col_10259_6162
Repositorio Institucional de la Universidad de Burgos
author
Valverde Som, Lucía
author
Reguera Alonso, Celia
author
Herrero Gutiérrez, Ana
author
Sarabia Peinador, Luis Antonio
author
Ortiz Fernández, Mª Cruz
2021-11-17T08:50:29Z
2021-11-17T08:50:29Z
2021-06
2214-2894
http://hdl.handle.net/10259/6163
10.1016/j.fpsl.2021.100664
This paper reports on the difficulties encountered when developing an analytical method for ultra-trace determination, in a complex matrix, of plastic additive residues which are ubiquitous in the laboratory. The simultaneous qualitative and quantitative determination of an antioxidant (2,6-di-tert-butyl-4-methyl-phenol, BHT), an UV stabilizer (benzophenone, BP), and a plasticizer (diisobutyl phthalate, DiBP), released from plastic capsules is carried out in coffee by means of GC–MS and parallel factor analysis decomposition. Stir bar sorptive extraction is used to extract and concentrate the analytes. Coffee samples are prepared with Milli-Q water, which contains residues of the target compounds, which can be significant for ultra-trace analysis and should be subtracted. In addition, matrix effect exits in coffee, so standard addition method is used. The residue concentrations released from the coffee capsules into the solid coffee are around 3, 1, and 12 μg kg−1 of BHT, BP and DiBP, respectively.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Plastic additive residues
Coffee
Twister
SBSE-GC–MS
PARAFAC
Migration
Determination of polymer additive residues that migrate from coffee capsules by means of stir bar sorptive extraction-gas chromatography-mass spectrometry and PARAFAC decomposition
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/6163/1/Valverde-fpsl_2021.pdf
File
MD5
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2818198
application/pdf
Valverde-fpsl_2021.pdf