000130799 001__ 130799
000130799 005__ 20240131210811.0
000130799 0247_ $$2doi$$a10.1016/j.talanta.2021.122603
000130799 0248_ $$2sideral$$a126047
000130799 037__ $$aART-2021-126047
000130799 041__ $$aeng
000130799 100__ $$0(orcid)0000-0002-9804-8699$$aUbeda, Sara$$uUniversidad de Zaragoza
000130799 245__ $$aFabric phase sorptive extraction for specific migration analysis of oligomers from biopolymers
000130799 260__ $$c2021
000130799 5060_ $$aAccess copy available to the general public$$fUnrestricted
000130799 5203_ $$aOligomers are potential migrants from polymers or biopolymers intended to food packaging and they have to be under control. In order to comply with European regulation 10/2011, their concentration in migration must be below 0.01 mu g g(-1). In this work, fabric phase sorptive extraction (FPSE) was explored as an effective method for extraction and pre-concentration of oligomers migrated from a blend PLA-polyester material. Both food simulant B (3% acetic acid) and juice, as real food, were used for migration experiments. The parameters of FPSE were optimized and the analysis was done by UHPLC-QTOF and UHPLC-QqQ. A total of 21 oligomers were identified, 9 of them coming from PLA and 12 oligomers from the polyester part. These oligomers were formed by adipic acid (AA), phthalic acid (PA) and/or butanediol (BD), ten were cyclic and 11 were linear molecules. Using the optimized FPSE procedure in 3% acetic acid as food simulant, it was possible to identify 3 new compounds that were not detected by direct injection of the simulant into UHPLC-QTOF. In addition, 2 extra compounds, cyclic PA-BD4-AA(3) and cyclic PA(2)-BD3-AA, were only identified in juice samples after FPSE extraction. Besides, in order to quantify the compounds identified, an isolation procedure for PLA oligomers was carried out. Two oligomers were isolated: cyclic (LA)(6) and linear HO-(LA)(4)-H, both with a purity higher than 90% (LA: lactic acid). The highest concentration value was found for the cyclic oligomer [AA-BD](2), that showed 22.63 mu g g(-1) in 3% acetic acid and 19.64 mu g g(-1) in juice. The concentration of the total amount of remaining oligomers was below 7.56 mu g g(-1) in 3% acetic acid as well as in juice.
000130799 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FSE/T53-20R$$9info:eu-repo/grantAgreement/ES/MINECO/BES-2016-077159$$9info:eu-repo/grantAgreement/ES/MINECO/RTI2018-097805-B-I00
000130799 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000130799 590__ $$a6.556$$b2021
000130799 591__ $$aCHEMISTRY, ANALYTICAL$$b11 / 87 = 0.126$$c2021$$dQ1$$eT1
000130799 592__ $$a0.983$$b2021
000130799 593__ $$aSpectroscopy$$c2021$$dQ1
000130799 593__ $$aAnalytical Chemistry$$c2021$$dQ1
000130799 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000130799 700__ $$0(orcid)0000-0002-0759-9170$$aAznar, Margarita$$uUniversidad de Zaragoza
000130799 700__ $$0(orcid)0000-0003-2685-5739$$aNerin, Cristina$$uUniversidad de Zaragoza
000130799 700__ $$aKabir, Abizar
000130799 7102_ $$12009$$2750$$aUniversidad de Zaragoza$$bDpto. Química Analítica$$cÁrea Química Analítica
000130799 773__ $$g233 (2021), 122603 [8 pp.]$$pTalanta$$tTalanta$$x0039-9140
000130799 8564_ $$s1779929$$uhttps://zaguan.unizar.es/record/130799/files/texto_completo.pdf$$yVersión publicada
000130799 8564_ $$s2469384$$uhttps://zaguan.unizar.es/record/130799/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000130799 909CO $$ooai:zaguan.unizar.es:130799$$particulos$$pdriver
000130799 951__ $$a2024-01-31-19:22:00
000130799 980__ $$aARTICLE