Publications by Elisabeth Leere Øiestad
95 publications found
Original articles
Solvent-free parallel artificial liquid membrane extraction for drugs of abuse in plasma samples using LC-MS/MS
Anal Chim Acta, 1301, 342387
DOI 10.1016/j.aca.2024.342387, PubMed 38553114
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
Conductive vial electromembrane extraction of opioids from oral fluid
Anal Bioanal Chem, 415 (22), 5323-5335
DOI 10.1007/s00216-023-04807-3, PubMed 37386201
Determination of amphetamine enantiomers in urine by conductive vial electromembrane extraction and ultra-high performance supercritical fluid chromatography tandem mass spectrometry
Drug Test Anal, 15 (8), 909-918
DOI 10.1002/dta.3487, PubMed 37114617
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
Membrane-based liquid-phase microextraction of basic pharmaceuticals - A study on the optimal extraction window
J Chromatogr A, 1664, 462769
DOI 10.1016/j.chroma.2021.462769, PubMed 34998024
Green and sustainable drug analysis-Combining microsampling and microextraction of drugs of abuse
SUSTAIN. CHEM. PHARM., 24, 100517
DOI 10.1016/j.scp.2021.100517
Distribution of tetrahydrocannabinol and cannabidiol in several different postmortem matrices
Forensic Sci Int, 329, 111082
DOI 10.1016/j.forsciint.2021.111082, PubMed 34775328
Determination of psychoactive drugs in serum using conductive vial electromembrane extraction combined with UHPLC-MS/MS
J Chromatogr B Analyt Technol Biomed Life Sci, 1183, 122926
DOI 10.1016/j.jchromb.2021.122926, PubMed 34624684
Electromembrane extraction using deep eutectic solvents as the liquid membrane
Anal Chim Acta, 1143, 109-116
DOI 10.1016/j.aca.2020.11.044, PubMed 33384108
Electromembrane extraction of anthracyclines from plasma: Comparison with conventional extraction techniques
Talanta, 223 (Pt 2), 121748
DOI 10.1016/j.talanta.2020.121748, PubMed 33298272
Electromembrane Extraction with Vitals of Counducting Polymer
LCGCN North America, 38 (8), 435-439
PublikaID 355
Bioanalysis of pharmaceuticals using liquid-phase microextraction combined with liquid chromatography-mass spectrometry
J Pharm Biomed Anal, 189, 113446
DOI 10.1016/j.jpba.2020.113446, PubMed 32619730
Determination of anticoagulant rodenticides in faeces of exposed dogs and in a healthy dog population
Acta Vet Scand, 62 (1), 30
DOI 10.1186/s13028-020-00531-5, PubMed 32546243
Comparison of anticoagulant rodenticide concentrations in liver and feces from apparently healthy red foxes
J Vet Diagn Invest, 32 (4), 560-564
DOI 10.1177/1040638720927365, PubMed 32476615
Impact of ion balance in electromembrane extraction
Anal Chim Acta, 1124, 129-136
DOI 10.1016/j.aca.2020.05.039, PubMed 32534665
Electromembrane extraction of highly polar bases from biological samples - Deeper insight into bis(2-ethylhexyl) phosphate as ionic carrier
Anal Chim Acta, 1115, 23-32
DOI 10.1016/j.aca.2020.04.027, PubMed 32370866
Liquid-phase microextraction in 96-well plates - calibration and accurate quantification of pharmaceuticals in human plasma samples
J Chromatogr A, 1602, 117-123
DOI 10.1016/j.chroma.2019.06.013, PubMed 31229251
Detection Time of Oxazepam and Zopiclone in Urine and Oral Fluid after Experimental Oral Dosing
J Anal Toxicol, 43 (5), 369-377
DOI 10.1093/jat/bky083, PubMed 30615130
PREVALENCE OF ANTICOAGULANT RODENTICIDES IN FECES OF WILD RED FOXES (VULPES VULPES) IN NORWAY
J Wildl Dis, 55 (4), 834-843
DOI 10.7589/2019-01-027, PubMed 31112468
Electromembrane extraction with solvent modification of the acceptor solution: improved mass transfer of drugs of abuse from human plasma
Bioanalysis, 11 (8), 755-771
DOI 10.4155/bio-2018-0308, PubMed 30994001
An Experimental Study of Diazepam and Alprazolam Kinetics in Urine and Oral Fluid Following Single Oral Doses
J Anal Toxicol, 43 (2), 104-111
DOI 10.1093/jat/bky062, PubMed 30517712
Interpreting oral fluid drug results in prisoners: monitoring current drug intake and detection times for drugs self-administered prior to detention
Forensic Toxicol., 37 (1), 59-74
DOI 10.1007/s11419-018-0434-9
Identification and Assessment of Drug-User Groups Among Nightlife Attendees: Self-Reports, Breathalyzer-Tests and Oral Fluid Drug Tests
Eur Addict Res, 25 (2), 93-102
DOI 10.1159/000497318, PubMed 30783038
A Monoclonal Antibody against 6-Acetylmorphine Protects Female Mice Offspring from Adverse Behavioral Effects Induced by Prenatal Heroin Exposure
J Pharmacol Exp Ther, 368 (1), 106-115
DOI 10.1124/jpet.118.251504, PubMed 30361238
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
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
Metabolites of Heroin in Several Different Post-mortem Matrices
J Anal Toxicol, 42 (5), 311-320
DOI 10.1093/jat/bky002, PubMed 29409037
Electromembrane extraction of substances with weakly basic properties: a fundamental study with benzodiazepines
Bioanalysis, 10 (10), 769-781
DOI 10.4155/bio-2018-0030, PubMed 29771135
Dried blood spots and parallel artificial liquid membrane extraction-A simple combination of microsampling and microextraction
Anal Chim Acta, 1009, 56-64
DOI 10.1016/j.aca.2018.01.024, PubMed 29422132
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
Studies on Para-Methoxymethamphetamine (PMMA) Metabolite Pattern and Influence of CYP2D6 Genetics in Human Liver Microsomes and Authentic Samples from Fatal PMMA Intoxications
Drug Metab Dispos, 45 (12), 1326-1335
DOI 10.1124/dmd.117.077263, PubMed 28978661
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
Underestimated impact of novel psychoactive substances: laboratory confirmation of recreational drug toxicity in Oslo, Norway
Clin Toxicol (Phila), 55 (7), 636-644
DOI 10.1080/15563650.2017.1312002, PubMed 28406320
Efficient discrimination and removal of phospholipids during electromembrane extraction from human plasma samples
Bioanalysis, 9 (8), 631-641
DOI 10.4155/bio-2017-0027, PubMed 28508669
Parallel artificial liquid membrane extraction of new psychoactive substances in plasma and whole blood
J Chromatogr B Analyt Technol Biomed Life Sci, 1048, 77-84
DOI 10.1016/j.jchromb.2017.02.010, PubMed 28226266
Parallel artificial liquid membrane extraction as an efficient tool for removal of phospholipids from human plasma
J Pharm Biomed Anal, 129, 229-236
DOI 10.1016/j.jpba.2016.07.011, PubMed 27433988
Pharmacological Effects of a Monoclonal Antibody against 6-Monoacetylmorphine upon Heroin-Induced Locomotor Activity and Pharmacokinetics in Mice
J Pharmacol Exp Ther, 358 (2), 181-9
DOI 10.1124/jpet.116.233510, PubMed 27217591
New psychoactive substances
Tidsskr. Nor. Laegeforen., 136 (8), 714-717
New drugs right from the online
Tidsskr. Nor. Laegeforen., 136 (8), 721-723
New designer drugs from the web
Tidsskr Nor Laegeforen, 136 (8), 721-3
DOI 10.4045/tidsskr.15.1276, PubMed 27143463
Is toxicity of PMMA (paramethoxymethamphetamine) associated with cytochrome P450 pharmacogenetics?
Forensic Sci Int, 261, 137-47
DOI 10.1016/j.forsciint.2016.02.027, PubMed 26930544
Extended Detection of Amphetamine and Methamphetamine in Oral Fluid
Ther Drug Monit, 38 (1), 114-9
DOI 10.1097/FTD.0000000000000248, PubMed 26402425
Comparison of drugs used by nightclub patrons and criminal offenders in Oslo, Norway
Forensic Sci Int, 265, 1-5
DOI 10.1016/j.forsciint.2015.12.029, PubMed 26826845
Detection Times of Diazepam, Clonazepam, and Alprazolam in Oral Fluid Collected From Patients Admitted to Detoxification, After High and Repeated Drug Intake
Ther Drug Monit, 37 (4), 451-60
DOI 10.1097/FTD.0000000000000174, PubMed 25549207
Determination of dopamine concentrations in brain extracellular fluid using microdialysis with short sampling intervals, analyzed by ultra high performance liquid chromatography tandem mass spectrometry
J Pharmacol Toxicol Methods, 74, 75-9
DOI 10.1016/j.vascn.2015.06.002, PubMed 26123500
Very long Detection Times after High and repeated intake of Heroin and Methadone, measured in Oral Fluid
Scand. J. Forensic Sci., 20 (2), 34-41
DOI 10.2478/sjfs-2014-0004
Detection time for THC in oral fluid after frequent cannabis smoking
Ther Drug Monit, 36 (6), 808-14
DOI 10.1097/FTD.0000000000000092, PubMed 24819969
Concentrations of APINACA, 5F-APINACA, UR-144 and its degradant product in blood samples from six impaired drivers compared to previous reported concentrations of other synthetic cannabinoids
Forensic Sci Int, 246, 98-103
DOI 10.1016/j.forsciint.2014.11.012, PubMed 25485949
Determination of a selection of anti-epileptic drugs and two active metabolites in whole blood by reversed phase UPLC-MS/MS and some examples of application of the method in forensic toxicology cases
Drug Test Anal, 7 (7), 634-44
DOI 10.1002/dta.1733, PubMed 25331692
Parallel electromembrane extraction in the 96-well format
Anal Chim Acta, 828, 46-52
DOI 10.1016/j.aca.2014.04.038, PubMed 24845814
Use of alcohol and drugs among health professionals in Norway: a study using data from questionnaires and samples of oral fluid
J Occup Med Toxicol, 9 (1), 8
DOI 10.1186/1745-6673-9-8, PubMed 24612541
Role of 6-monoacetylmorphine in the acute release of striatal dopamine induced by intravenous heroin
Int J Neuropsychopharmacol, 17 (9), 1357-65
DOI 10.1017/S1461145714000169, PubMed 24576415
A comparison of alcohol and drug use by random motor vehicle drivers in Brazil and Norway
Int J Drug Policy, 25 (3), 393-400
DOI 10.1016/j.drugpo.2014.01.019, PubMed 24613265
Very long Detection Times after High and repeated intake of Heroin and Methadone, measured in Oral Fluid
Scandinavian Journal of Forensic Science, 20 (2), 34-41
DOI 10.2478/sjfs-2014-0004, PublikaID 292
Analyses of beverage remains in drug rape cases revealing drug residues--the possibility of contamination from drug concentrated oral fluid or oral cavity contained tablets
J Forensic Sci, 59 (1), 208-10
DOI 10.1111/1556-4029.12270, PubMed 24117495
Levels of heroin and its metabolites in blood and brain extracellular fluid after i.v. heroin administration to freely moving rats
Br J Pharmacol, 170 (3), 546-56
DOI 10.1111/bph.12305, PubMed 23865556
Prevalence of synthetic cannabinoids in blood samples from Norwegian drivers suspected of impaired driving during a seven weeks period
Accid Anal Prev, 62, 26-31
DOI 10.1016/j.aap.2013.09.009, PubMed 24129318
Comparison of drug concentrations between whole blood and oral fluid
Drug Test Anal, 6 (5), 461-71
DOI 10.1002/dta.1532, PubMed 24039237
Screening of synthetic cannabinoids in preserved oral fluid by UPLC-MS/MS
Bioanalysis, 5 (18), 2257-68
DOI 10.4155/bio.13.182, PubMed 24053241
A Norwegian study of the suitability of hair samples in epidemiological research of alcohol, nicotine and drug use
J Anal Toxicol, 37 (6), 362-8
DOI 10.1093/jat/bkt038 , PublikaID 266
A Norwegian study of the suitability of hair samples in epidemiological research of alcohol, nicotine and drug use
J Anal Toxicol, 37 (6), 362-8
DOI 10.1093/jat/bkt038, PubMed 23689070
Norwegian roadside survey of alcohol and drug use by drivers (2008-2009)
Traffic Inj Prev, 14 (5), 443-52
DOI 10.1080/15389588.2012.728016, PubMed 23697895
Prolonged excretion of 7-aminoclonazepam in urine after repeated ingestion of clonazepam: a case report
Forensic Sci Int, 222 (1-3), e33-5
DOI 10.1016/j.forsciint.2012.06.018, PubMed 22819278
Detection of drugs of abuse in simultaneously collected oral fluid, urine and blood from Norwegian drug drivers
Forensic Sci Int, 219 (1-3), 165
PublikaID 265
Simultaneous measurement of heroin and its metabolites in brain extracellular fluid by microdialysis and ultra performance liquid chromatography tandem mass spectrometry
J Pharmacol Toxicol Methods, 66 (1), 14-21
DOI 10.1016/j.vascn.2012.04.009, PubMed 22561414
Detection of drugs of abuse in simultaneously collected oral fluid, urine and blood from Norwegian drug drivers
Forensic Sci Int, 219 (1-3), 165-71
DOI 10.1016/j.forsciint.2012.01.001, PubMed 22284072
The PMMA epidemic in Norway: comparison of fatal and non-fatal intoxications
Forensic Sci Int, 219 (1-3), 151-7
DOI 10.1016/j.forsciint.2011.12.014, PubMed 22257968
Drugs of abuse in oral fluid collected by two different sample kits-stability testing and validation using ultra performance tandem mass spectrometry analysis.
J Chromatogr B Analyt Technol Biomed Life Sci, 879 (30), 3367-77
DOI 10.1016/j.jchromb.2011.09.002 , PublikaID 263
Comparison of the stability of stock solutions of drugs of abuse and other drugs stored in a freezer, refrigerator, and at ambient temperature for up to one year
J Anal Toxicol, 35 (8), 583-90
DOI 10.1093/anatox/35.8.583, PubMed 22004679
Drugs of abuse in oral fluid collected by two different sample kits--stability testing and validation using ultra performance tandem mass spectrometry analysis
J Chromatogr B Analyt Technol Biomed Life Sci, 879 (30), 3367-77
DOI 10.1016/j.jchromb.2011.09.002, PubMed 21962269
Electromembrane extraction of stimulating drugs from undiluted whole blood
J Chromatogr A, 1232, 27-36
DOI 10.1016/j.chroma.2011.08.058, PubMed 21899849
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
Oral fluid is a viable alternative for monitoring drug abuse: detection of drugs in oral fluid by liquid chromatography-tandem mass spectrometry and comparison to the results from urine samples from patients treated with Methadone or Buprenorphine
J Anal Toxicol, 35 (1), 32-9
DOI 10.1093/anatox/35.1.32, PubMed 21219701
Using biological samples in epidemiological research on drugs of abuse
Norsk Epidemiologi, 21 (1), 5-14
PublikaID 293
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
Comparison of ethanol and other drugs of abuse concentrations in whole blood stored in venoject glass and plastic and venosafe plastic evacuated tubes
J Anal Toxicol, 34 (7), 420-8
DOI 10.1093/jat/34.7.420, PubMed 20822681
Determination of digoxin and digitoxin in whole blood
J Anal Toxicol, 33 (7), 372-8
DOI 10.1093/jat/33.7.372, PubMed 19796507
Prevalence of alcohol and drugs among Norwegian motor vehicle drivers: a roadside survey
Accid Anal Prev, 40 (5), 1765-72
DOI 10.1016/j.aap.2008.06.015, PubMed 18760106
Rapid quantification of buprenorphine-glucuronide and norbuprenorphine-glucuronide in human urine by LC-MS-MS
J Anal Toxicol, 31 (4), 214-9
DOI 10.1093/jat/31.4.214, PubMed 17555645
Simultaneous determination of 6 beta-blockers, 3 calcium-channel antagonists, 4 angiotensin-II antagonists and 1 antiarrhythmic drug in post-mortem whole blood by automated solid phase extraction and liquid chromatography mass spectrometry. Method development and robustness testing by experimental design
J Chromatogr B Analyt Technol Biomed Life Sci, 850 (1-2), 147-60
DOI 10.1016/j.jchromb.2006.11.030, PubMed 17175206
Drug screening of preserved oral fluid by liquid chromatography-tandem mass spectrometry
Clin Chem, 53 (2), 300-9
DOI 10.1373/clinchem.2006.074237, PubMed 17158196
Determination of benzodiazepines in human urine using solid-phase extraction and high-performance liquid chromatography-electrospray ionization tandem mass spectrometry
J Anal Toxicol, 30 (1), 31-7
DOI 10.1093/jat/30.1.31, PubMed 16620529
Unimolecular reactions of protonated hydrogen peroxide: A quantum chemical survey
Journal of Physical Chemistry A, 104, 8382-8388
DOI 10.1021/jp000480g, PublikaID 369
Competition between proton transfer and hydride abstraction in chemical ionisation mass spectrometry of ethylamine
International Journal of Mass Spectrometry, 199 (1-3), 91-105
PublikaID 371
Dipolar H-2 activation by H2O
Chemical Communications, 1 (10), 831-832
DOI 10.1039/b001209m, PublikaID 370
The unimolecular chemistry of protonated hydroxylamine
International Journal of Mass Spectrometry, 185, 231-240
PublikaID 368
Unimolecular reactions of protonated hydrazine. Reaction mechanisms and dynamics from observation of metastable ion fragmentations and ab initio calculations
International Journal of Mass Spectrometry, 165, 39-47
PublikaID 367
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
Review articles
Novel psychoactive substances
Tidsskr Nor Laegeforen, 136 (8), 714-7
DOI 10.4045/tidsskr.15.1278, PubMed 27143461
Oral fluid drug analysis in the age of new psychoactive substances
Bioanalysis, 8 (7), 691-710
DOI 10.4155/bio-2015-0027, PubMed 26964619
[Effect and occurrence of synthetic cannabinoids]
Tidsskr Nor Laegeforen, 132 (20), 2285-8
DOI 10.4045/tidsskr.12.0471, PubMed 23736196
Other articles
Drug analysis: Comparison between dried plasma spots and liquid plasma samples of trauma patients from Cameroon-A feasibility study
Drug Test Anal, 16 (3), 303-308
DOI 10.1002/dta.3545, PubMed 37464568
Novel approaches and green sample preparation in bioanalytical protocols
SUSTAIN. CHEM. PHARM., 24, 100559
DOI 10.1016/j.scp.2021.100559
Book chapters
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