Showing results (11-20 of 86) with videos related to

Sort By:
Pageof 9
Drug Testing and Analysis|December 23, 2022
New gamma-hydroxybutyric acid (GHB) biomarkers: Development and validation of a liquid chromatography-tandem mass spectrometry method for the determination of GHB amino acid, carnitine, and fatty acid conjugates in urineAndrea E Steuer, Linda Sutter, Christian Steuer, et al.
Journal of Analytical Toxicology|June 16, 2026
Performance Evaluation of a Commercial LC-HRMS Platform for Untargeted Whole Blood Analysis: Comparison with Immunoassay and LRMS Urine Screening and Targeted LC-MS/MS (MRM) Whole Blood QuantificationAnnina Bovens, Lana Brockbals, Thomas Kraemer, et al.
Drug Testing and Analysis|August 18, 2018
Suitability evaluation of new endogenous biomarkers for the identification of nitrite-based urine adulteration in mass spectrometry methodsAndrea E Steuer, Kim Arnold, Dominique Kamber, et al.
Analytical and Bioanalytical Chemistry|April 28, 2023
Advances in testing for sample manipulation in clinical and forensic toxicology-part B: hair samplesDirk K Wissenbach, Tina M Binz, Andrea E Steuer
Metabolites|December 24, 2025
Assessing the Feasibility of In Vitro Assays in Combination with Biological Matrices to Screen for Endogenous CYP450 Phenotype Biomarkers Using an Untargeted Metabolomics Approach-A Proof of Concept StudyYannick Wartmann, Lana Brockbals, Thomas Kraemer, et al.
Analytical and Bioanalytical Chemistry|August 31, 2017
Assessment of simpler calibration models in the development and validation of a fast postmortem multi-analyte LC-QTOF quantitation method in whole blood with simultaneous screening capabilities using SWATH acquisitionMarco P Elmiger, Michael Poetzsch, Andrea E Steuer, et al.
Drug Testing and Analysis|November 6, 2014
Development and validation of an LC-MS/MS method after chiral derivatization for the simultaneous stereoselective determination of methylenedioxy-methamphetamine (MDMA) and its phase I and II metabolites in human blood plasmaAndrea E Steuer, Corina Schmidhauser, Matthias E Liechti, et al.
Drug Testing and Analysis|June 18, 2014
Segmental hair analysis for differentiation of tilidine intake from external contamination using LC-ESI-MS/MS and MALDI-MS/MS imagingMichael Poetzsch, Markus R Baumgartner, Andrea E Steuer, et al.
Analytical Chemistry|February 6, 2018
Parameter Optimization for Feature and Hit Generation in a General Unknown Screening Method-Proof of Concept Study Using a Design of Experiment Approach for a High Resolution Mass Spectrometry Procedure after Data Independent AcquisitionMarco P Elmiger, Michael Poetzsch, Andrea E Steuer, et al.
Toxicology Letters|January 2, 2016
Inhibition potential of 3,4-methylenedioxymethamphetamine (MDMA) and its metabolites on the in vitro monoamine oxidase (MAO)-catalyzed deamination of the neurotransmitters serotonin and dopamineAndrea E Steuer, Martina I Boxler, Lorena Stock, et al.
Pageof 9