title: Differentiation of cefaclor and its delta-3 isomer by electrospray mass spectrometry, infrared multiple photon dissociation spectroscopy and theoretical calculations.
authors.affiliation: Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China; National Institutes for Food and Drug Control, Beijing, 100050, China.
authors.forename: Jian-Qin
authors.initials: JQ
authors.lastname: Qian
authors.forename: Thiago C
authors.initials: TC
authors.lastname: Correra
authors.forename: Jin
authors.initials: J
authors.lastname: Li
authors.forename: Philippe
authors.initials: P
authors.lastname: Maître
authors.forename: Dan-Qing
authors.initials: DQ
authors.lastname: Song
authors.forename: Chang-Qin
authors.initials: CQ
authors.lastname: Hu
mesh_terms: D002433:Cefaclor / Q000032:analysis* / Q000737:chemistry*; D002511:Cephalosporins / Q000032:analysis / Q000737:chemistry; D007536:Isomerism; D011789:Quantum Theory; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D013055:Spectrophotometry, Infrared / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods
chemical_list: D002511:Cephalosporins; C054920:loracarbef; D002433:Cefaclor