L. Kristoffersen

发表

Relationship between betahydroxybutyrate (BHB) and acetone concentrations in postmortem blood and cause of death.

G. Høiseth, M. C. Strand, Lena Midtlyng, 2021, Forensic science international.

Has the intake of THC by cannabis users changed over the last decade? Evidence of increased exposure by analysis of blood THC concentrations in impaired drivers.

J. Mørland, V. Vindenes, D. H. Strand, 2013, Forensic science international.

Drug screening of hair by liquid chromatography-tandem mass spectrometry.

A. Christophersen, N. Kunøe, P. Lobmaier, 2008, Journal of analytical toxicology.

Quantitative determination of zopiclone and zolpidem in whole blood by liquid-liquid extraction and UHPLC-MS/MS.

L. Kristoffersen, E. Eliassen, 2014, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

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.

D. Ekeberg, Å. Øiestad, L. Kristoffersen, 2013, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Ethanol elimination rates at low concentrations based on two consecutive blood samples.

J. Mørland, G. Høiseth, L. Kristoffersen, 2016, Forensic science international.

[Drug testing in hair].

A. Christophersen, S. Hegstad, L. Kristoffersen, 2020, Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke.

Simultaneous determination of citalopram, fluoxetine, paroxetine and their metabolites in plasma by temperature-programmed packed capillary liquid chromatography with on-column focusing of large injection volumes.

T. Greibrokk, E. Lundanes, A. Thomassen, 2002, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Comparative Study of Postmortem Concentrations of Antidepressants in Several Different Matrices.

Å. Øiestad, V. Vindenes, E. Øiestad, 2018, Journal of analytical toxicology.

Simultaneous determination of citalopram, fluoxetine, paroxetine and their metabolites in plasma and whole blood by high-performance liquid chromatography with ultraviolet and fluorescence detection.

E. Lundanes, L. Slørdal, L. Kristoffersen, 1999, Journal of chromatography. B, Biomedical sciences and applications.

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 d

A. Christophersen, E. Lundanes, M. Krogh, 2007, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Headspace gas chromatographic determination of ethanol: the use of factorial design to study effects of blood storage and headspace conditions on ethanol stability and acetaldehyde formation in whole blood and plasma.

L. Kristoffersen, A. Smith-Kielland, Liv-Ellen Stormyhr, 2006, Forensic science international.

Frequency of postmortem ethanol formation in blood, urine and vitreous humor - Improving diagnostic accuracy with the use of ethylsulphate and putrefactive alcohols.

J. Mørland, R. Kronstrand, F. Kugelberg, 2021, Forensic science international.

Quantitative Determination of Ethyl Glucuronide and Ethyl Sulfate in Postmortem and Antemortem Whole Blood Using Phospholipid Removal 96-Well Plate and UHPLC–MS-MS

L. Kristoffersen, Delvin Sidqey, V. Liane, 2020, Journal of analytical toxicology.

EtG and EtS in Autopsy Blood Samples With and Without Putrefaction Using UPLC-MS-MS.

O. Spigset, S. Hegstad, L. Kristoffersen, 2016, Journal of analytical toxicology.

Determination of safety margins for whole blood concentrations of alcohol and nineteen drugs in driving under the influence cases.

M. Aldrin, I. F. Tvete, V. Vindenes, 2016, Forensic science international.

In vitro formation of ethanol in autopsy samples containing fluoride ions

J. Mørland, G. Høiseth, N. Hermansen, 2007, International Journal of Legal Medicine.

Determination of 12 commonly found compounds in DUID cases in whole blood using fully automated supported liquid extraction and UHPLC-MS/MS.

D. H. Strand, L. Kristoffersen, K. Gaare, 2018, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

An automated alcohol dehydrogenase method for ethanol quantification in urine and whole blood.

L. Kristoffersen, A. Smith-Kielland, A. Smith‐Kielland, 2005, Journal of analytical toxicology.

Fast quantification of ethanol in whole blood specimens by the enzymatic alcohol dehydrogenase method. Optimization by experimental design.

S. Skurtveit, L. Kristoffersen, A. Smith-Kielland, 2005, Journal of analytical toxicology.

Driving under the influence of zopiclone: Elimination between two consecutive blood samples.

G. Høiseth, L. Kristoffersen, Ø. Bleka, 2023, Forensic science international.

Prevalence of alcohol and drugs among Norwegian motor vehicle drivers: a roadside survey.

Terje Assum, Magne Aldrin, Hallvard Gjerde, 2008, Accident; analysis and prevention.