title: [Survey of contamination of food by 3, 4-benzopyrene. I. Demonstration of a universal method of determination. Application to the determination in complete meals in food emporia].
abstract: A versatile spectrofluorimetric method is proposed for the determination of 3,4-benzopyrene in foods and biological material. Recording the emission spectrum allows a reliable identification, and determination at a 0,2 ppb level, with 85 p. 100 recovery and good reproductibility. The time required for analysis is decreased, if compared to existing methods. As a test of its reliability, results of a survey on 3,4-benzopyrene content in canteen meals are presented. The values obtain are very low, generally below 1 ppb; their significance is discussed.
mesh_terms: D000818:Animals; D001580:Benzopyrenes / Q000032:analysis* / Q000302:isolation & purification; D002845:Chromatography / Q000379:methods; D005506:Food Contamination / Q000032:analysis*; D006801:Humans; D013050:Spectrometry, Fluorescence / Q000379:methods
chemical_list: D001580:Benzopyrenes
vernacular_title: Enquêt sur la contamination des aliments par le 3,4-benzopyrène. I. Mise au point d'une méthode universelle de dosage. Application à la détermination dans des repas complets de collectivités.