Stability of Direct Oral Anticoagulants and Antiarrhythmic Drugs in Serum Collected in Standard (Nongel) Serum Tubes Versus Tubes Containing Gel Separators
Hegstad, Solfrid, Fuskevåg, Ole-Martin, Amundsen, Siri, Gule, Marina, Spigset, Olav, Helland, Arne
Published in Therapeutic drug monitoring (01.04.2022)
Published in Therapeutic drug monitoring (01.04.2022)
Get more information
Journal Article
Serum or Plasma for Quantification of Direct Oral Anticoagulants?
Aakerøy, Rachel, Stokes, Charlotte L, Tomić, Marija, Hegstad, Solfrid, Kristoffersen, Ann Helen, Ellekjær, Hanne, Schjøtt, Jan, Spigset, Olav, Helland, Arne
Published in Therapeutic drug monitoring (01.08.2022)
Published in Therapeutic drug monitoring (01.08.2022)
Get more information
Journal Article
Screening and quantitative determination of drugs of abuse in diluted urine by UPLC–MS/MS
Hegstad, Solfrid, Hermansson, Sigurd, Betnér, Ingvar, Spigset, Olav, Falch, Berit Margrethe Hasle
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01.02.2014)
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01.02.2014)
Get full text
Journal Article
Determination of psychoactive drugs in serum using conductive vial electromembrane extraction combined with UHPLC-MS/MS
Skaalvik, Tonje Gottenberg, Øiestad, Elisabeth Leere, Trones, Roger, Pedersen-Bjergaard, Stig, Hegstad, Solfrid
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (15.10.2021)
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (15.10.2021)
Get full text
Journal Article
Serum Concentrations and Pharmacokinetics of Tranexamic Acid after Two Means of Topical Administration in Massive Weight Loss Skin-Reducing Surgery
Ausen, Kjersti, Pleym, Hilde, Liu, Jiayin, Hegstad, Solfrid, Nordgård, Håvard Bersås, Pavlovic, Ivan, Spigset, Olav
Published in Plastic and reconstructive surgery (1963) (01.06.2019)
Published in Plastic and reconstructive surgery (1963) (01.06.2019)
Get more information
Journal Article
Quantitative determination of R/S‐methadone in human serum using ultra‐high performance supercritical fluid chromatography‐tandem mass spectrometry: A method for routine use
Hansen, Miriam, Havnen, Hilde, Andreassen, Trine Naalsund, Spigset, Olav, Hegstad, Solfrid
Published in Drug testing and analysis (01.07.2024)
Published in Drug testing and analysis (01.07.2024)
Get full text
Journal Article
Determination of amphetamine enantiomers in urine by conductive vial electromembrane extraction and ultra‐high performance supercritical fluid chromatography tandem mass spectrometry
Skaalvik, Tonje Gottenberg, Øiestad, Elisabeth Leere, Pedersen‐Bjergaard, Stig, Hegstad, Solfrid
Published in Drug testing and analysis (01.08.2023)
Published in Drug testing and analysis (01.08.2023)
Get full text
Journal Article
Enantiomeric separation and quantification of citalopram in serum by ultra-high performance supercritical fluid chromatography-tandem mass spectrometry
Hegstad, Solfrid, Havnen, Hilde, Helland, Arne, Falch, Berit Margrethe Hasle, Spigset, Olav
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01.09.2017)
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01.09.2017)
Get full text
Journal Article
EtG/EtS in Serum by UHPLC–MS-MS in Suspected Sexual Assault Cases
Hegstad, Solfrid, Helland, Arne, Hagemann, Cecilie, Spigset, Olav
Published in Journal of analytical toxicology (01.09.2017)
Published in Journal of analytical toxicology (01.09.2017)
Get full text
Journal Article
EtG and EtS in Autopsy Blood Samples With and Without Putrefaction Using UPLC-MS-MS
Hegstad, Solfrid, Kristoffersen, Lena, Liane, Veronica H, Spigset, Olav
Published in Journal of analytical toxicology (01.03.2017)
Published in Journal of analytical toxicology (01.03.2017)
Get full text
Journal Article
Naltrexone implants after in-patient treatment for opioid dependence: randomised controlled trial
Kun⊘e, Nikolaj, Lobmaier, Philipp, Vederhus, John Kåre, Hjerkinn, Bj⊘rg, Hegstad, Solfrid, Gossop, Michael, Kristensen, Øistein, Waal, Helge
Published in British journal of psychiatry (01.06.2009)
Published in British journal of psychiatry (01.06.2009)
Get full text
Journal Article
EtG/EtS in Urine from Sexual Assault Victims Determined by UPLC-MS-MS
Hegstad, Solfrid, Helland, Arne, Hagemann, Cecilie, Michelsen, Lisbeth, Spigset, Olav
Published in Journal of analytical toxicology (01.05.2013)
Published in Journal of analytical toxicology (01.05.2013)
Get full text
Journal Article
A Validated Method for Simultaneous Determination of Codeine, Codeine-6-Glucuronide, Norcodeine, Morphine, Morphine-3-Glucuronide and Morphine-6-Glucuronide in Post-Mortem Blood, Vitreous Fluid, Muscle, Fat and Brain Tissue by LC–MS
Frost, Joachim, Løkken, Trine N., Brede, Wenche R., Hegstad, Solfrid, Nordrum, Ivar S., Slørdal, Lars
Published in Journal of analytical toxicology (01.04.2015)
Published in Journal of analytical toxicology (01.04.2015)
Get full text
Journal Article
Challenges to antagonist blockade during sustained-release naltrexone treatment
Kunøe, Nikolaj, Lobmaier, Philipp, Vederhus, John Kåre, Hjerkinn, Bjørg, Gossop, Michael, Hegstad, Solfrid, Kristensen, Øistein, Waal, Helge
Published in Addiction (Abingdon, England) (01.09.2010)
Published in Addiction (Abingdon, England) (01.09.2010)
Get full text
Journal Article