Visualitza Institut Universitari de Plaguicides i Aigües (IUPA) per autoria "da6a1d2b-d75f-44f2-9bb8-53b5e00715bd"
Ara mostrant els elements 1-5 d 5
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Fragmentation pathways of drugs of abuse and their metabolites based on QTOF MS/MS and MSE accurate-mass spectra
Bijlsma, Lubertus; Sancho, Juan V; Hernandez, Felix; Niessen, Wilfried M. A. John Wiley (2011-09)A study of the fragmentation pathways of several classes of drugs of abuse (cannabinoids, ketamine, amphetamine and amphetamine-type stimulants (ATS), cocaine and opiates) and their related substances has been made. The ... -
Identification of new omeprazole metabolites in wastewaters and surface waters
Boix Sales, Clara; Ibáñez, Maria; Zamora, T.; Sancho, Juan V; Niessen, Wilfried M. A.; Hernandez, Felix Elsevier (2014-01)Omeprazole is one of the world-wide most consumed pharmaceuticals for treatment of gastric diseases. As opposed to other frequently used pharmaceuticals, omeprazole is scarcely detected in urban wastewaters and environmental ... -
Investigating the presence of omeprazole in waters by liquid chromatography coupled to low and high resolution mass spectrometry: degradation experiments
Boix Sales, Clara; Ibáñez, Maria; Sancho, Juan V; Niessen, Wilfried M. A.; Hernandez, Felix John Wiley & Sons (2013-09)Omeprazole is one of the most consumed pharmaceuticals around the world. However, this compound is scarcely detected in urban wastewater and surface water. The absence of this pharmaceutical in the aquatic ecosystem might ... -
Investigation of degradation products of cocaine and benzoylecgonine in the aquatic environment
Bijlsma, Lubertus; Boix Sales, Clara; Niessen, Wilfried M. A.; Ibáñez, Maria; Sancho, Juan V; Hernandez, Felix Elsevier (2013-01)In this work, ultra-high-performance liquid chromatography (UHPLC) coupled to a hybrid quadrupole time-of-flight mass spectrometer (QTOF MS) has allowed the discovery and elucidation of degradation products of cocaine and ... -
Use of soft and hard ionization techniques for elucidation of unknown compounds by gas chromatography/time-of-flight mass spectrometry
Portoles, Tania; Pitarch, Elena; Lopez, Francisco; Hernandez, Felix; Niessen, Wilfried M. A. John Wiley (2011-05-11)Investigation of trace-level non-target compounds by gas chromatography/mass spectrometry (GC/MS) often is a challenging task that requires powerful software tools to detect the unknown components, to obtain the deconvoluted ...