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List of works by Sys Stybe Johansen

A drug rape case involving triazolam detected in hair and urine

scientific article published on 9 December 2011

A fatal case of amlodipine poisoning

scientific article

A fatal overdose of the ergot derivative cabergoline

scientific article published in November 2004

Advantages of analyzing postmortem brain samples in routine forensic drug screening-Case series of three non-natural deaths tested positive for lysergic acid diethylamide (LSD).

scientific article

Amitriptyline accumulation in tissues after coated activated charcoal hemoperfusion-a randomized controlled animal poisoning model

scientific article published on 11 June 2019

Application of a screening method for fentanyl and its analogues using UHPLC-QTOF-MS with data-independent acquisition (DIA) in MS(E) mode and retrospective analysis of authentic forensic blood samples

scientific article

Brain-blood ratio of morphine in heroin and morphine autopsy cases

scientific article published on 13 June 2019

Chiral analysis of methadone and its main metabolite EDDP in postmortem blood by liquid chromatography-mass spectrometry

scientific article published in September 2008

Chiral separation and quantification of R/S-amphetamine, R/S-methamphetamine, R/S-MDA, R/S-MDMA, and R/S-MDEA in whole blood by GC-EI-MS

scientific article published on 21 June 2006

Deposition of diazepam and its metabolites in hair following a single dose of diazepam.

scientific article

Detection of the antipsychotic drug quetiapine in the blood, urine and hair samples of the victim of a drug-facilitated sexual assault

scientific article published on 15 December 2016

Determination of GHB and GHB-β-O-glucuronide in hair of three narcoleptic patients-Comparison between single and chronic GHB exposure

scientific article published on 31 July 2017

Determination of amphetamine, methamphetamine, MDA and MDMA in human hair by GC-EI-MS after derivatization with perfluorooctanoyl chloride

scientific article

Determination of olanzapine in whole blood using simple protein precipitation and liquid chromatography-tandem mass spectrometry.

scientific article published in May 2009

Development of a UPLC–MS/MS method for determining γ-hydroxybutyric acid (GHB) and GHB glucuronide concentrations in hair and application to forensic cases

article

Distribution of zopiclone and main metabolites in hair following a single dose

scientific article published on 22 November 2019

Distribution patterns, dermatomal anesthesia, and ropivacaine serum concentrations after bilateral dual transversus abdominis plane block

scientific article

Dominance of pre-analytical over analytical variation for measurement of methadone and its main metabolite in postmortem femoral blood

scientific article published on 5 June 2008

Drug facilitated sexual assault with lethal outcome: GHB intoxication in a six-year-old girl

scientific article

Drug-related death in Denmark in 2007.

scientific article published in August 2011

Drugs in injured drivers in Denmark

scientific article published on 21 April 2005

Enantioselective analysis of citalopram and demethylcitalopram in human whole blood by chiral LC-MS/MS and application in forensic cases

scientific article

Evaluation of metabolite/drug ratios in blood and urine as a tool for confirmation of a reduced tolerance in methadone-related deaths in Denmark

scientific article published on 25 July 2013

Evaluation of poly-drug use in methadone-related fatalities using segmental hair analysis.

scientific article published on 12 January 2015

Fatal cases of poisoning in eastern Denmark during a five-year period (1998-2002)

scientific article published in September 2006

Fatal intoxications among non-drug addicts in Eastern Denmark over a 5-year period (2008–2012)

scholarly article published December 2018

Fatal overdose of the herbicide bentazone

scientific article published in August 2003

Fatal poisonings among drug addicts in Denmark in 2002

scientific article published in May 2005

Gamma-Hydroxybutyrate (GHB) Content in Hair Samples Correlates Negatively with Age in Succinic Semialdehyde Dehydrogenase Deficiency

scientific article published on 18 February 2017

Hair analysis in toxicological investigation of drug-facilitated crimes in Denmark over a 8-year period.

scientific article published on 5 February 2018

Hair testing for cortisol by UPLC-MS/MS in a family: External cross-contamination from use of cortisol cream

scientific article published on 30 September 2019

Identification of phenobarbital and other barbiturates in forensic drug screening using positive electrospray ionization liquid chromatography-high resolution mass spectrometry

scientific article published on 24 May 2019

In vitro and in vivo metabolism and detection of 3-HO-PCP, a synthetic phencyclidine, in human samples and pooled human hepatocytes using high resolution mass spectrometry

scientific article published on 20 April 2020

In vitro metabolism studies on mephedrone and analysis of forensic cases

scientific article

In vitro studies on flubromazolam metabolism and detection of its metabolites in authentic forensic samples

scientific article published on 9 December 2016

In vivo imaging of cerebral serotonin transporter and serotonin(2A) receptor binding in 3,4-methylenedioxymethamphetamine (MDMA or "ecstasy") and hallucinogen users.

scientific article published in June 2011

Isomers of fluoroamphetamines detected in forensic cases in Denmark

scientific article published in July 2012

Ketamine analogues: Comparative toxicokinetic in vitro-in vivo extrapolation and quantification of 2-fluorodeschloroketamine in forensic blood and hair samples

scientific article published on 18 December 2019

Liquid chromatography-tandem mass spectrometry determination of LSD, ISO-LSD, and the main metabolite 2-oxo-3-hydroxy-LSD in forensic samples and application in a forensic case

scientific article

Liquid chromatography-tandem mass spectrometry determination of loperamide and its main metabolite desmethylloperamide in biological specimens and application to forensic cases

scientific article published in November 2004

Method development for trace analysis of heteroaromatic compounds in contaminated groundwater

scientific article published on 01 July 1996

Post-mortem quetiapine concentrations in hair segments of psychiatric patients - Correlation between hair concentration, dose and concentration in blood

scientific article published on 3 February 2018

Postmortem Brain and Blood Reference Concentrations of Alprazolam, Bromazepam, Chlordiazepoxide, Diazepam, and their Metabolites and a Review of the Literature

scientific article

Postmortem Brain-Blood Ratios of Amphetamine, Cocaine, Ephedrine, MDMA and Methylphenidate

scientific article published on 01 June 2019

Postmortem Femoral Blood Concentrations of Amlodipine

scientific article published on 01 May 2011

Postmortem Quetiapine Reference Concentrations in Brain and Blood

scientific article

Postmortem analysis of three methoxyacetylfentanyl-related deaths in Denmark and in vitro metabolite profiling in pooled human hepatocytes

scientific article published on 25 July 2018

Postmortem blood concentrations of R- and S-enantiomers of methadone and EDDP in drug users: influence of co-medication and p-glycoprotein genotype

scientific article published on 19 January 2010

Postmortem concentrations of gamma-hydroxybutyrate (GHB) in peripheral blood and brain tissue - Differentiating between postmortem formation and antemortem intake

scientific article published on 5 January 2017

Postmortem femoral blood concentrations of risperidone

scientific article

Postmortem femoral blood reference concentrations of aripiprazole, chlorprothixene, and quetiapine

scientific article

Pre-analytical and analytical variation of drug determination in segmented hair using ultra-performance liquid chromatography-tandem mass spectrometry.

scientific article

Psychedelic effects of psilocybin correlate with serotonin 2A receptor occupancy and plasma psilocin levels

scientific article published on 26 January 2019

Quantitative analysis of cocaine and its metabolites in whole blood and urine by high-performance liquid chromatography coupled with tandem mass spectrometry

scientific article published in February 2007

Reference Brain and Blood Concentrations of Olanzapine in Postmortem Cases

scientific article published on 01 November 2018

Reference Brain/Blood Concentrations of Citalopram, Duloxetine, Mirtazapine and Sertraline

scientific article published on 13 December 2017

Retrospective analysis for valproate screening targets with liquid chromatography–high resolution mass spectrometry with positive electrospray ionization: An omics‐based approach

scientific article published on 13 December 2018

Screening for illicit and medicinal drugs in whole blood using fully automated SPE and ultra-high-performance liquid chromatography with TOF-MS with data-independent acquisition

scientific article

Screening of Danish traffic cases for synthetic cannabinoids in whole blood by LC-MS/MS

Segmental Analysis of Chlorprothixene and Desmethylchlorprothixene in Postmortem Hair

scientific article published on 01 November 2018

Segmental Hair Analysis-Interpretation of the Time of Drug Intake in Two Patients Undergoing Drug Treatment

Sensitive, automatic method for the determination of diazepam and its five metabolites in human oral fluid by online solid-phase extraction and liquid chromatography with tandem mass spectrometry

scientific article published on 23 March 2016

Simultaneous determination of 25 common pharmaceuticals in whole blood using ultra-performance liquid chromatography-tandem mass spectrometry.

scientific article published on 19 June 2012

Simultaneous determination of ethanol's four types of non-oxidative metabolites in human whole blood by liquid chromatography tandem mass spectrometry

scientific article published on 4 February 2017

Simultaneous determination of γ-Hydroxybutyrate (GHB) and its analogues (GBL, 1.4-BD, GVL) in whole blood and urine by liquid chromatography coupled to tandem mass spectrometry

scientific article

Simultaneous screening and quantification of 52 common pharmaceuticals and drugs of abuse in hair using UPLC-TOF-MS.

scientific article published on 12 January 2010

Stability of γ-Hydroxybutyrate in Blood Samples from Impaired Drivers after Storage at 4°C and Comparison of GC-FID-GBL and LC-MS-MS Methods of Analysis

scientific article

Survival after severe ecstasy intoxication

scientific article

Targeted analysis of 116 drugs in hair by UHPLC-MS/MS and its application to forensic cases.

scientific article published on 29 October 2016

The significance of sampling time in therapeutic drug monitoring of clozapine

scientific article published on 6 December 2016

Validation of a fully automated SPE and UHPLC-MS/MS method for quantification of 30 pharmaceuticals and metabolites in post-mortem blood and brain samples

scientific article published on 16 January 2018

Validation of a method for the targeted analysis of 96 drugs in hair by UPLC–MS/MS

article

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