title: Data-dependent tandem mass spectrometry of doubly protonated molecules in pharmaceutical analysis.
authors.forename: Lianming
authors.initials: L
authors.lastname: Wu
authors.forename: David Q
authors.initials: DQ
authors.lastname: Liu
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D004364:Pharmaceutical Preparations / Q000032:analysis* / Q000737:chemistry*; D011522:Protons; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: D004364:Pharmaceutical Preparations; D011522:Protons