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.
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.
authors.affiliation: Departamento de Alimentos e Nutrição, Faculdade de Ciências Farmacêuticas, Sao Paulo State University-UNESP, 14801-902 Araraquara, SP, Brazil. nasser@iq.unesp.br
authors.forename: A L M
authors.initials: AL
authors.lastname: Nasser
authors.forename: L M X
authors.initials: LM
authors.lastname: Lopes
authors.forename: M N
authors.initials: MN
authors.lastname: Eberlin
authors.forename: M
authors.initials: M
authors.lastname: Monteiro
mesh_terms: D001628:Beverages; D002138:Calibration; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods*; D002957:Citrus; D019281:Dimerization; D019855:Ethylene Glycol / Q000032:analysis / Q000737:chemistry; D005506:Food Contamination / Q000032:analysis*; D018857:Food Packaging / Q000379:methods / Q000592:standards; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008900:Mineral Waters; D015394:Molecular Structure; D010795:Phthalic Acids / Q000032:analysis / Q000737:chemistry; D011093:Polyethylene Terephthalates / Q000737:chemistry*; D015203:Reproducibility of Results
chemical_list: D008900:Mineral Waters; D010795:Phthalic Acids; D011093:Polyethylene Terephthalates; C011363:terephthalic acid; D019855:Ethylene Glycol