Åse Marit Leere Øiestad
- Scientist; PhD
- +47 23 01 30 96
Publications 2024
Metabolite markers for three synthetic tryptamines N-ethyl-N-propyltryptamine, 4-hydroxy-N-ethyl-N-propyltryptamine, and 5-methoxy-N-ethyl-N-propyltryptamine
Drug Test Anal (in press)
DOI 10.1002/dta.3668, PubMed 38459837
Driving under the influence of cocaine and MDMA: Relationship between blood concentrations and results from clinical test of impairment
J Anal Toxicol, 48 (5), 380-387
DOI 10.1093/jat/bkae024, PubMed 38613441
Publications 2023
High-throughput quantification of emerging "nitazene" benzimidazole opioid analogs by microextraction and UHPLC-MS-MS
J Anal Toxicol, 47 (9), 787-796
DOI 10.1093/jat/bkad071, PubMed 37700512
Comparative Study of Postmortem Concentrations of Benzodiazepines and Z-Hypnotics in Several Different Matrices
J Anal Toxicol, 47 (3), 287-298
DOI 10.1093/jat/bkac106, PubMed 36542823
Publications 2022
Methadone, Buprenorphine, Oxycodone, Fentanyl and Tramadol in Multiple Postmortem Matrices
J Anal Toxicol, 46 (6), 600-610
DOI 10.1093/jat/bkab071, PubMed 34115841
[Yew – a toxic shrub veiled in myth with medical potential]
Tidsskr Nor Laegeforen, 142 (6)
DOI 10.4045/tidsskr.22.0033, PubMed 35383451
Publications 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
Distribution of tetrahydrocannabinol and cannabidiol in several different postmortem matrices
Forensic Sci Int, 329, 111082
DOI 10.1016/j.forsciint.2021.111082, PubMed 34775328
Publications 2020
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, PubMed 33333419
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, PubMed 32369173
Publications 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, PubMed 30807539
Publications 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, PubMed 30157097
Is Hair Analysis Useful in Postmortem Cases?
J Anal Toxicol, 42 (1), 49-54
DOI 10.1093/jat/bkx077, PubMed 28977558
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, PubMed 30107329
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
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, PubMed 30015276
Metabolites of Heroin in Several Different Post-mortem Matrices
J Anal Toxicol, 42 (5), 311-320
DOI 10.1093/jat/bky002, PubMed 29409037
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, PubMed 29947895
Comparative Study of Postmortem Concentrations of Antidepressants in Several Different Matrices
J Anal Toxicol, 42 (7), 446-458
DOI 10.1093/jat/bky030, PubMed 29762694
Publications 2017
Determination of adrenaline, noradrenaline and corticosterone in rodent blood by ion pair reversed phase UHPLC-MS/MS
J Chromatogr B Analyt Technol Biomed Life Sci, 1072, 161-172
DOI 10.1016/j.jchromb.2017.11.016, PubMed 29175696
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, PubMed 28735217
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
Extended Detection of Amphetamine and Methamphetamine in Oral Fluid
Ther Drug Monit, 38 (1), 114-9
DOI 10.1097/FTD.0000000000000248, PubMed 26402425
Validated methods for determination of neurotransmitters and metabolites in rodent brain tissue and extracellular fluid by reversed phase UHPLC-MS/MS
J Chromatogr B Analyt Technol Biomed Life Sci, 1028, 120-129
DOI 10.1016/j.jchromb.2016.06.011, PubMed 27336704
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, PubMed 27327554
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, PubMed 27464485
Oral fluid drug analysis in the age of new psychoactive substances
Bioanalysis, 8 (7), 691-710
DOI 10.4155/bio-2015-0027, PubMed 26964619
Publications 2014
Evaluation of ¹³C- and ²H-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, PubMed 24780257
Lethal poisonings with AH-7921 in combination with other substances
Forensic Sci Int, 244, e21-4
DOI 10.1016/j.forsciint.2014.08.013, PubMed 25216892
Publications 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 Analyt Technol Biomed Life Sci, 927, 112-23
DOI 10.1016/j.jchromb.2012.12.039, PubMed 23380540
Publications 2011
Drug screening of whole blood by ultra-performance liquid chromatography-tandem mass spectrometry
J Anal Toxicol, 35 (5), 280-93
DOI 10.1093/anatox/35.5.280, PubMed 21619723
Determination of benzodiazepines in ante-mortem and post-mortem whole blood by solid-supported liquid-liquid extraction and UPLC-MS/MS
J Chromatogr B Analyt Technol Biomed Life Sci, 883-884, 177-88
DOI 10.1016/j.jchromb.2011.10.033, PubMed 22119506
Publications 2010
Comparison of zopiclone concentrations in oral fluid sampled with Intercept(®) oral specimen collection device and Statsure Saliva Sampler™ and concentrations in blood
J Anal Toxicol, 34 (9), 590-3
DOI 10.1093/jat/34.9.590, PubMed 21073813
Publications 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
Reactions of protonated molecules and cationic metal clusters studied in the gas phase
Unipub forlag, 108 s
PublikaID 451
The oxidative power of protonated hydrogen peroxide
Angewandte Chemie, 113, p. 1345-1349
PublikaID 450
Publications 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
Gas phase reactivity of small cationic cobalt clusters towards methanol
Chemical Physics , 262, p. 169-177
PublikaID 449
Publications 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
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