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Drug Testing and Analysis|June 15, 2020
Enantiomeric separation and quantification of R/S-amphetamine in serum using semi-automated liquid-liquid extraction and ultra-high performance supercritical fluid chromatography-tandem mass spectrometryHilde Havnen, Miriam Hansen, Olav Spigset, et al.Drug Testing and Analysis|April 11, 2024
Quantitative determination of R/S-methadone in human serum using ultra-high performance supercritical fluid chromatography-tandem mass spectrometry: A method for routine useMiriam Hansen, Hilde Havnen, Trine Naalsund Andreassen, et al.Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|July 18, 2017
Enantiomeric separation and quantification of citalopram in serum by ultra-high performance supercritical fluid chromatography-tandem mass spectrometrySolfrid Hegstad, Hilde Havnen, Arne Helland, et al.Journal of Analytical Toxicology|January 30, 2025
A validated method for capillary phosphatidylethanol 16:0/18:1 quantification with two different 10-µl volumetric absorptive microsample devices in the same setupTrine N Andreassen, Marina Gule, Hilde Havnen, et al.Journal of Analytical Toxicology|October 5, 2017
High Throughput UPLC®-MSMS Method for the Analysis of Phosphatidylethanol (PEth) 16:0/18:1, a Specific Biomarker for Alcohol Consumption, in Whole BloodTrine Naalsund Andreassen, Hilde Havnen, Olav Spigset, et al.Alcohol and Alcoholism (Oxford, Oxfordshire)|March 17, 2023
Quantifying Alcohol Consumption in the General Population by Analysing Phosphatidylethanol Concentrations in Whole Blood: Results from 24,574 Subjects Included in the HUNT4 StudyRagnhild Bergene Skråstad, Trond Oskar Aamo, Trine Naalsund Andreassen, et al.Pageof 1