title: Capillary gas chromatography/mass spectrometry with chemical ionization and negative ion detection for confirmation of identity of patulin in apple juice.
abstract: Gas chromatography/mass spectrometry (GC/MS) with negative ion chemical ionization permits detection of underivatized patulin in apple juice extracts while minimizing co-extractive responses. The technique has been used with a variety of capillary columns in quadrupole, ion trap, and magnetic sector GC/MS instruments to confirm presumptive findings of patulin in apple juice at concentrations ranging from 68 to 3700 micrograms/L. The demonstrated ability to use any of these 3 mass spectrometers and several capillary columns to confirm the identity of patulin are significant strengths of the technique.
authors.affiliation: U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204, USA.
authors.forename: J A
authors.initials: JA
authors.lastname: Roach
authors.forename: K D
authors.initials: KD
authors.lastname: White
authors.forename: M W
authors.initials: MW
authors.lastname: Trucksess
authors.forename: F S
authors.initials: FS
authors.lastname: Thomas
mesh_terms: D001628:Beverages / Q000032:analysis*; D005506:Food Contamination; D005638:Fruit; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D010365:Patulin / Q000032:analysis*; D012680:Sensitivity and Specificity
chemical_list: D010365:Patulin