Screening by tandem mass spectrometry for trace levels of alkylbenzenes.
Product ion spectra derived from molecule ions as the precursor ions for 14 alkylbenzenes have been studied under electron ionization and methane chemical ionization. The data have provided a satisfactory screening method for both detection and confirmation of such compounds at low parts per million levels.
Cairns
T
T
Department of Health and Human Services, Food and Drug Administration, Los Angeles, California 90015.
Siegmund
E G
EG
D001555:Benzene Derivatives / Q000032:analysis*; D005504:Food Analysis / Q000379:methods*; D013058:Mass Spectrometry / Q000379:methods; D014131:Trace Elements / Q000032:analysis*
D001555:Benzene Derivatives; D014131:Trace Elements