Publications 2024

Noreng L, Wilson SR, Øiestad EL, Øiestad ML (2024)
On the Surprising Retention Order of Ketamine Analogs Using a Biphenyl Stationary Phase
LCGC Supplements Recent Developments in HPLC, 1, 26–29
DOI 10.56530/lcgc.int.yk4168j2, PublikaID 509

Publications 2021

Bergh MSS, Bogen IL, Nerem E, Wohlfarth A, Wilson SR, Oiestad AML (2021)
Discovering the major metabolites of the three novel fentanyl analogues 3-methylcrotonylfentanyl, furanylbenzylfentanyl, and 4-fluorocyclopropylbenzylfentanyl for forensic case work
Forensic Toxicol., 39 (1), 167-178
DOI 10.1007/s11419-020-00560-9

Bergh MSS, Oiestad AML, Baumann MH, Bogen IL (2021)
Selectivity and sensitivity of urine fentanyl test strips to detect fentanyl analogues in illicit drugs
Int. J. Drug Policy, 90, 103065
DOI 10.1016/j.drugpo.2020.103065

Pettersen S, Oiestad AML, Rogde S, Brochmann GW, Oiestad EL, Vindenes V (2021)
Distribution of tetrahydrocannabinol and cannabidiol in several different postmortem matrices
Forensic Sci.Int., 329, 111082
DOI 10.1016/j.forsciint.2021.111082

Publications 2020

Heide G, Hoiseth G, Middelkoop G, Oiestad AML (2020)
Blood Concentrations of Designer Benzodiazepines: Relation to Impairment and Findings in Forensic Cases
J. Anal. Toxicol., 44 (8), 905-914
DOI 10.1093/jat/bkaa043

Publications 2019

Bergh MSS, Bogen IL, Wohlfarth A, Wilson SR, Oiestad AML (2019)
Distinguishing Between Cyclopropylfentanyl and Crotonylfentanyl by Methods Commonly Available in the Forensic Laboratory
Ther. Drug Monit., 41 (4), 519-527
DOI 10.1097/FTD.0000000000000617

Publications 2018

Bergh MSS, Bogen IL, Andersen JM, Oiestad AML, Berg T (2018)
Determination of adrenaline, noradrenaline and corticosterone in rodent blood by ion pair reversed phase UHPLC-MS/MS
J. Chromatogr. B, 1072, 161-172
DOI 10.1016/j.jchromb.2017.11.016

Bergh MSS, Bogen IL, Wilson SR, Oiestad AML (2018)
Addressing the Fentanyl Analogue Epidemic by Multiplex UHPLC-MS/MS Analysis of Whole Blood
Ther. Drug Monit., 40 (6), 738-748
DOI 10.1097/FTD.0000000000000564

Mardal M, Johansen SS, Davidsen AB, Telving R, Jornil JR, Dalsgaard PW, Hasselstrom JB, Oiestad AM, Linnet K, Andreasen MF (2018)
Postmortem analysis of three methoxyacetylfentanyl-related deaths in Denmark and in vitro metabolite profiling in pooled human hepatocytes
Forensic Sci.Int., 290, 310-317
DOI 10.1016/j.forsciint.2018.07.020

Oiestad AML, Berg T, Eliassen E, Wiklund T, Sand K, Oiestad EL (2018)
Separation of isomers of new psychoactive substances and isotope-labeled amphetamines using UHPSFC-MS/MS and UHPLC-MS/MS
J. Liq. Chromatogr. Relat. Technol., 41 (7), 391-400
DOI 10.1080/10826076.2017.1388818

Oiestad AML, Karinen R, Rogde S, Nilsen S, Eldor KBB, Brochmann GW, Arnestad M, Oiestad EL, Peres MD, Kristoffersen L, Vindenes V (2018)
Comparative Study of Postmortem Concentrations of Antidepressants in Several Different Matrices
J. Anal. Toxicol., 42 (7), 446-458
DOI 10.1093/jat/bky030

Thaulow CH, Oiestad AML, Rogde S, Andersen JM, Hoiseth G, Handal M, Morland J, Vindenes V (2018)
Can measurements of heroin metabolites in post-mortem matrices other than peripheral blood indicate if death was rapid or delayed?
Forensic Sci.Int., 290, 121-128
DOI 10.1016/j.forsciint.2018.06.041

Thaulow CH, Oiestad AML, Rogde S, Karinen R, Brochmann GW, Andersen JM, Hoiseth G, Handal M, Morland J, Arnestad M, Oiestad EL, Strand DH, Vindenes V (2018)
Metabolites of Heroin in Several Different Post-mortem Matrices
J. Anal. Toxicol., 42 (5), 311-320
DOI 10.1093/jat/bky002

Vardal L, Wong G, Oiestad AML, Pedersen-Bjergaard S, Gjelstad A, Oiestad EL (2018)
Rapid determination of designer benzodiazepines, benzodiazepines, and Z-hypnotics in whole blood using parallel artificial liquid membrane extraction and UHPLC-MS/MS
Anal. Bioanal. Chem., 410 (20), 4967-4978
DOI 10.1007/s00216-018-1147-y

Publications 2017

Hjelmeland K, Gustavsen I, Oiestad EL, Oiestad AML, Hoiseth G, Morland J (2017)
Zopiclone concentrations in oral fluid and blood after, administration of therapeutic doses of zopiclone
Forensic Sci.Int., 278, 177-183
DOI 10.1016/j.forsciint.2017.07.004

Hoiseth G, Berg-Hansen GO, Oiestad AML, Bachs L, Morland J (2017)
Impairment due to alcohol, tetrahydrocannabinol, and benzodiazepines in impaired drivers compared to experimental studies
Traffic Inj. Prev., 18 (3), 244-250
DOI 10.1080/15389588.2016.1201205

Valen A, Oiestad AML, Strand DH, Skari R, Berg T (2017)
Determination of 21 drugs in oral fluid using fully automated supported liquid extraction and UHPLC-MS/MS
Drug Test. Anal., 9 (5), 808-823
DOI 10.1002/dta.2045

Øiestad EL, Karinen RA, Haugland K, Øiestad ML (2017)
Chapter 101 Screening of Synthetic Cannabinoids
In Handbook of Cannabis and Related Pathologies (Victor R. Preedy, ed.), Academic Press, San Diego, 1, 981-997
DOI 10.1016/B978-0-12-800756-3.00118-6, PublikaID 291, ISBN 978-0-12-800756-3

Publications 2016

Andas HT, Enger A, Oiestad AML, Vindenes V, Christophersen AS, Huestis MA, Oiestad EL (2016)
Extended Detection of Amphetamine and Methamphetamine in Oral Fluid
Ther. Drug Monit., 38 (1), 114-119
DOI 10.1097/FTD.0000000000000248

Bergh MSS, Bogen IL, Lundanes E, Oiestad AML (2016)
Validated methods for determination of neurotransmitters and metabolites in rodent brain tissue and extracellular fluid by reversed phase UHPLC-MS/MS
J. Chromatogr. B, 1028, 120-129
DOI 10.1016/j.jchromb.2016.06.011

Oiestad EL, Oiestad AML, Gjelstad A, Karinen R (2016)
Oral fluid drug analysis in the age of new psychoactive substances
Bioanalysis, 8 (7), 691-710
DOI 10.4155/bio-2015-0027

Publications 2014

Berg T, Karlsen M, Oiestad AML, Johansen JE, Liu HL, Strand DH (2014)
Evaluation of C-13- and H-2-labeled internal standards for the determination of amphetamines in biological samples, by reversed-phase ultra-high performance liquid chromatography-tandem mass spectrometry
J. Chromatogr. A, 1344, 83-90
DOI 10.1016/j.chroma.2014.04.020

Karinen R, Tuv SS, Rogde S, Peres MD, Johansen U, Frost J, Vindenes V, Oiestad AML (2014)
Lethal poisonings with AH-7921 in combination with other substances
Forensic Sci.Int., 244, E21-E24
DOI 10.1016/j.forsciint.2014.08.013

Publications 2013

Amundsen I, Oiestad AML, Ekeberg D, Kristoffersen L (2013)
Quantitative determination of fifteen basic pharmaceuticals in ante- and post-mortem whole blood by high pH mobile phase reversed phase ultra high performance liquid chromatography-tandem mass spectrometry
J. Chromatogr. B, 927, 112-123
DOI 10.1016/j.jchromb.2012.12.039

Publications 2012

Sauve EN, Langodegard M, Ekeberg D, Oiestad AML (2012)
Determination of benzodiazepines in ante-mortem and post-mortem whole blood by solid-supported liquid-liquid extraction and UPLC-MS/MS
J. Chromatogr. B, 883, 177-188
DOI 10.1016/j.jchromb.2011.10.033

Publications 2011

Oiestad EL, Johansen U, Oiestad AML, Christophersen AS (2011)
Drug Screening of Whole Blood by Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry
J. Anal. Toxicol., 35 (5), 280-293
DOI 10.1093/anatox/35.5.280

Publications 2010

Gjerde H, Oiestad EL, Oiestad AML, Langodegard M, Gustavsen I, Hjelmeland K, Bernard JP, Christophersen AS (2010)
Comparison of Zopiclone Concentrations in Oral Fluid Sampled with Intercept (R) Oral Specimen Collection Device and Statsure Saliva Sampler (TM) and Concentrations in Blood
J. Anal. Toxicol., 34 (9), 590-593
DOI 10.1093/jat/34.9.590

Publications 2005

Nielsen SB, Øiestad ML, Bojesen G, Uggerud E (2005)
Binding of molecular oxygen and alkenes to coordinatively unsaturated bipyridinium metal complexes int the gas phase
International Journal of Mass Spectrometry , 243, p 231-239
PublikaID 452

Publications 2001

Øiestad ML (2001)
Reactions of protonated molecules and cationic metal clusters studied in the gas phase
Unipub forlag, 108 s
PublikaID 451

Øiestad ML, Petersen AC, Bakken V, Vedde J, Uggerud E (2001)
The oxidative power of protonated hydrogen peroxide
Angewandte Chemie, 113, p. 1345-1349
PublikaID 450

Publications 2000

Øiestad ML, Uggerud E (2000)
Mediatiors for hydrogenation of carbon monoxide: theoretical study of addition of H2 to HCO+ in the presence of CO or H2O
International Journal of Mass Spectrometry , 201, p. 179-185
PublikaID 448

Øiestad ML, Uggerud E (2000)
Gas phase reactivity of small cationic cobalt clusters towards methanol
Chemical Physics , 262, p. 169-177
PublikaID 449

Publications 1997

Øiestad ML, Uggerud E (1997)
Loss of H2 from CH2NH2+ and NHNH2+. Reaction mechanisms and dynamics from observation of metastable ion fragmentations and ab initio calculations
International Journal of Mass Spectrometry and Ion Processes, 167/168, p 117-126
PublikaID 447

Publications 1995

Øiestad EL, Øiestad ML, Skaane H, Ruud K, Helgaker T, Uggerud E (1995)
Loss of H-2 from CH3NH3+, CH3OH2+ and CH3FH+ - Reaction-Mechanisms and Dynamics from Observation of Metastable Ion Fragmentations and Ab-Initio Calculations Reaction-Mechanisms
Europeamn Mass Spectrometry, 1 (2), 121-129
PublikaID 366