title: Liquid chromatography-mass spectrometry method for determination of ramipril and its active metabolite ramiprilat in human plasma.
abstract: A fast and robust liquid chromatography-mass spectrometry (LC-MS-MS) method has been developed for simultaneous quantitation of the angiotensin-converting enzyme (ACE) inhibitor, ramipril and its metabolite ramiprilat in human plasma. The method involves a solid-phase extraction from plasma, simple isocratic chromatography conditions and mass spectrometric detection that enables a detection limit at sub-nanogram levels. The proposed method has been validated with a linear range of 0.5-250 ng/ml for both ramipril and ramiprilat. The overall recoveries for ramipril and ramiprilat were 88.7 and 101.8%, respectively.
mesh_terms: D000806:Angiotensin-Converting Enzyme Inhibitors / Q000097:blood* / Q000493:pharmacokinetics; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods*; D017257:Ramipril / Q000097:blood* / Q000493:pharmacokinetics; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D000806:Angiotensin-Converting Enzyme Inhibitors; D017257:Ramipril