H. Brzezinka et al., CHARACTERIZATION OF BETA-BLOCKERS BY CHEMICAL-IONIZATION WITH AMMONIA- APPLICATION TO FORENSIC CHEMISTRY, Biological mass spectrometry, 22(8), 1993, pp. 462-464
Chemical ionization with NH3 is shown to be especially suitable for a
screening for beta-blockers, in particular in forensically relevant ca
ses. H/D exchange in a parallel experiment with ND3 as a reagent gas c
an be used for further characterization.