Utility of membrane preconcentration-capillary electrophoresis-mass spectrometry in overcoming limited sample loading for analysis of biologically derived drug metabolites, peptides, and proteins
Journal of the American Society for Mass Spectrometry | July 25, 2002 | Volume: 8 | Issue: 1 | Pages: 15-24
10.1016/s1044-0305(96)00133-x