title: Degradation mechanism for a trace impurity in quinapril drug by tandem mass and precursor ions studies.
authors: Vikas
authors: V
authors: Shinde
authors: Anurag
authors: A
authors: Trivedi
authors: P R
authors: PR
authors: Upadhayay
authors: N L
authors: NL
authors: Gupta
authors: D G
authors: DG
authors: Kanase
authors: Rajeev C
authors: RC
authors: Chikate
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods*; D004340:Drug Contamination / Q000517:prevention & control*; D004353:Drug Evaluation, Preclinical / Q000379:methods*; D007477:Ions; D000077583:Quinapril; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D021241:Spectrometry, Mass, Electrospray Ionization / Q000295:instrumentation / Q000379:methods*; D044005:Tetrahydroisoquinolines / Q000032:analysis* / Q000737:chemistry*
chemical_list: D007477:Ions; D044005:Tetrahydroisoquinolines; D000077583:Quinapril