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  • Title: Identification of oligomers in polyethyleneterephthalate bottles for mineral water and fruit juice. Development and validation of a high-performance liquid chromatographic method for the determination of first series cyclic trimer.
    Author: Nasser AL, Lopes LM, Eberlin MN, Monteiro M.
    Journal: J Chromatogr A; 2005 Dec 02; 1097(1-2):130-7. PubMed ID: 16298192.
    Abstract:
    Cyclic oligomers were identified in PET bottles used for mineral water and fruit juice using MS and (1)H and (13)C NMR: a first series cyclic trimer, a first series cyclic tetramer, a first series cyclic dimmer and a second series cyclic trimer. An analytical method to determine first series cyclic trimer in these bottles was developed and validated, using HPLC. The first series cyclic trimer levels were 316-462 mg/100g of PET bottle.
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