title: Identification of phase I metabolites of cardiovascular and anti-ulcer drugs in surface water samples with liquid-chromatography-mass spectrometry methods.
abstract: In our study we have identified phase I metabolites of cardiovascular and anti-ulcer agents with the application of predictive multiple reaction monitoring (pMRM) methods with liquid-chromatography-triple-quadrupole mass spectrometry (LC-QQQ-MS) in surface water samples. Targeted accurate mass spectrometry measurements were also carried out for confirmation with liquid-chromatography-time-of-flight mass spectrometry (LC-TOF-MS). pMRM followed by a targeted accurate mass spectrometry measurement can provide a sound basis for the selection of metabolites to be included in analytical methods for the investigation of environmental load of pharmaceuticals. Using LC-QQQ-MS twenty-one metabolites could be identified with two independent transitions at the same retention time and six of them could also be confirmed with LC-TOF-MS.
authors.affiliation: Eötvös Loránd University, Joint Research and Training Laboratory on Separation Techniques, H-1117 Budapest, Pázmány Péter sétány 1/A, Hungary. renata.varga@ekol.chem.elte.hu
authors.forename: Renáta
authors.initials: R
authors.lastname: Varga
authors.forename: Zsuzsanna
authors.initials: Z
authors.lastname: Eke
authors.forename: Kornél
authors.initials: K
authors.lastname: Torkos
mesh_terms: D000897:Anti-Ulcer Agents / Q000032:analysis* / Q000378:metabolism; D002317:Cardiovascular Agents / Q000032:analysis* / Q000378:metabolism; D002853:Chromatography, Liquid / Q000379:methods*; D013058:Mass Spectrometry / Q000379:methods*; D050216:Metabolic Detoxication, Phase I; D014867:Water / Q000737:chemistry*
chemical_list: D000897:Anti-Ulcer Agents; D002317:Cardiovascular Agents; D014867:Water