Sys Stybe Johansen

Research output

Research output per year 1993 2005 2011 2012 2013 2017 2018 2019 2020

• 89 Journal article
• 3 Article in proceedings
• 3 Conference abstract in journal
• 2 Report
• 13 More
  • 2 Book chapter
  • 2 Conference abstract for conference
  • 2 Poster
  • 2 Conference article
  • 2 Working paper
  • 1 Ph.D. thesis
  • 1 Conference abstract in proceedings
  • 1 Net publication - Internet publication

Research output per year

Research output per year

Search results

• 2012

  A suspected facilitated crime (DFC) investigated by hair analysis: SOFT, Boston, MA, USA

  Johansen, S. S. & Nielsen, M. K. K., 4 Jul 2012. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  718 Downloads (Pure)

• Distribution patterns, dermatomal anesthesia, and Ropivacaine serum concentrations after bilateral dualtransversus abdominis plane block

  Johansen, S. S., May 2012, In: Regional Anesthesia and Pain Medicine. 37, 3, p. 294-301

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Ropivacaine 100%
  • Abdominal Muscles 93%
  • Anesthesia 60%
  • Serum 34%
  • Magnetic Resonance Imaging 20%
  88 Citations (Scopus)

• Fatal intoxications among non-drug addicts in Eastern Denmark over a five-year period (2003-2007)

  Johansen, S. S., 2012, In: Research and Reports in Forensic Medical Science. 2, p. 1-7 7 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

• Isomers of fluoroamphetamines detected in forensic cases in Denmark

  Johansen, S. S. & Hansen, T. M., Jul 2012, In: International Journal of Legal Medicine. 126, p. 541-547 7 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • 4-fluoroamphetamine 100%
  • Denmark 91%
  • Driving Under the Influence 52%
  • Ions 30%
  • Amphetamine 26%
  27 Citations (Scopus)

• Simultaneous Determination of 25 Common Pharmaceuticals in Whole Blood Using Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry

  Nielsen, M. K. K. & Johansen, S. S., 1 Sept 2012, In: Journal of Analytical Toxicology. 36, p. 497-506 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Liquid chromatography 100%
  • Mass spectrometry 83%
  • Tandem Mass Spectrometry 71%
  • Drug products 71%
  • Liquid Chromatography 68%
  27 Citations (Scopus)
• 2011

  Drug-related death in Denmark in 2007

  Simonsen, K. W., Hansen, A. C., Rollmann, D., Kringsholm, B., Müller, I. B., Johansen, S. S. & Linnet, K., 1 Aug 2011, In: Danish Medical Bulletin (Online). 58, 8, p. 1-5 5 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Denmark 100%
  • Methadone 46%
  • Heroin 46%
  • Poisoning 40%
  • Pharmaceutical Preparations 38%
  10 Citations (Scopus)

  2974 Downloads (Pure)

• Forgiftningsdødsfald blandt narkomaner i 2007

  Simonsen, K. W., Hansen, A. C., Rollmann, D., Kringsholm, B., Müller, I. B., Johansen, S. S. & Linnet, K., 29 Aug 2011, In: Ugeskrift for Laeger. 173, 35, p. 2118 1 p.

  Research output: Contribution to journal › Conference article › Research

• In vivo imaging of cerebral serotonin transporter and serotonin2A receptor binding in 3,4 - methylenedioxymethamphetamine (MDMA or "Ecstasy") and hallucinogen users

  Erritzøe, D. F., Frøkjær, V. G., Holst, K. K., Christoffersen, M., Johansen, S. S., Svarer, C., Madsen, J., Rasmussen, P. M., Ramsøy, T., Jernigan, T. L. & Knudsen, G. M., Jun 2011, In: Archives of General Psychiatry. 68, 6, p. 562-576 15 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  57 Citations (Scopus)

• MDPV, Nu også i Danmark – første dokumenterede dødsfald. Møde ved Dansk selskab for Retsmedicin og Dansk Selskab for Ulykkes- og Skadeforbyggelse

  Heiumbürger, R. & Johansen, S. S., 3 Nov 2011.

  Research output: Contribution to conference › Poster › Research

• Postmortem femoral blood concentrations of amlodipine

  Linnet, K. & Johansen, S. S., May 2011, In: Journal of Analytical Toxicology. 35, p. 227-231 5 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Cytochrome P-450 Enzyme System 100%
  • Amlodipine 77%
  • serum 52%
  • Blood 49%
  • Serum Level 44%
  10 Citations (Scopus)

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

  Johansen, S. S. & Windberg, C. N., Jan 2011, In: Journal of Analytical Toxicology. 35, 1, p. 8-14 7 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Butylene Glycols 100%
  • Liquid chromatography 83%
  • Sodium Oxybate 82%
  • Mass spectrometry 70%
  • Tandem Mass Spectrometry 60%
  41 Citations (Scopus)

• Ultrasound-guided bilateral dual transversus abdominis plane block

  Neimann, J. D. B., Jansen, T., Høgberg, L. C. G., Johansen, S. S., Christensen, A. F. & Jensen, K., Sept 2011, In: Regional Anesthesia and Pain Medicine. 36, 7, p. E11 1 p.

  Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  53 Citations (Scopus)

  952 Downloads (Pure)

• Venovenøs hæmodiafiltrering til baclofenforgiftet patient

  Translated title of the contribution: Venovenous hemodiafiltration for patient with baclofen intoxicationNielsen, S. U., Jansen, T., Johansen, S. S., Linnet, K., Gregersen, P. & Høgberg, L. C. G., May 2011, In: Ugeskrift for Laeger. 173, 22, p. 1578-9 2 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Hemodiafiltration 100%
  • Baclofen 88%
  • Continuous Renal Replacement Therapy 62%
  • Toxicokinetics 32%
  • Coma 24%
  2 Citations (Scopus)
• 2010

  Findings of amphetamines and ecstasy in drivers in Denmark from 1997-2007

  Nielsen, M. K. K. & Johansen, S. S., 2010, In: Scandinavian Journal of Forensic Science. 16, 1, p. 17-19 3 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

• Postmortem Blood Concentrations of R- and S-Enantiomers of Methadone and EDDP in Drug Users: Influence of Co-Medication and P-glycoprotein Genotype

  Buchard, A., Linnet, K., Johansen, S. S., Munkholm, J., Fregerslev, M. & Morling, N., Mar 2010, In: Journal of Forensic Sciences. 55, 2, p. 457-63 7 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Methadone 100%
  • ATP Binding Cassette Transporter, Subfamily B, Member 1 95%
  • Drug Users 90%
  • Genotype 62%
  • 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine 19%
  22 Citations (Scopus)

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

  Nielsen, M. K. K., Johansen, S. S., Dalsgaard, P. W. & Linnet, K., 20 Mar 2010, In: Forensic Science International. 196, 1-3, p. 85-92 7 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • quantification 100%
  • Hair 88%
  • pharmaceutical 83%
  • Substance-Related Disorders 78%
  • abuse 66%
  116 Citations (Scopus)
• 2009

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

  Johansen, S. S. & Jornil, J., 2009, In: Scandinavian Journal of Clinical & Laboratory Investigation. 69, 1, p. 113-20 7 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • perfluorooctanoic acid 100%
  • N-Methyl-3,4-methylenedioxyamphetamine 87%
  • Methamphetamine 86%
  • Amphetamine 80%
  • Hair 64%
  19 Citations (Scopus)

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

  Nielsen, M. K. K. & Johansen, S. S., 2009, In: Journal of Analytical Toxicology. 33, 4, p. 212-7 5 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Olanzapine 100%
  • Liquid chromatography 98%
  • Simple Protein 91%
  • Mass spectrometry 82%
  • Tandem Mass Spectrometry 70%
  32 Citations (Scopus)
• 2008

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

  Johansen, S. S., 2008.

  Research output: Contribution to conference › Poster › Research

  16 Citations (Scopus)

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

  Johansen, S. S. & Linnet, K., 2008, In: Journal of Analytical Toxicology. 32, 7, p. 499-504 5 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  16 Citations (Scopus)

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

  Linnet, K., Johansen, S. S., Buchard, A., Munkholm, J. & Morling, N., 2008, In: Forensic Science International. 179, 1, p. 78-82 4 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Methadone 100%
  • Uncertainty 80%
  • Thigh 70%
  • uncertainty 65%
  • blood samples 49%
  21 Citations (Scopus)

• Overlevelse efter svær ecstacyforgiftning

  Dahl, M. K., Johansen, S. S., Ramlau, J. & Jensen, K. A., 2008, In: Ugeskrift for læger. 170, 45, p. 3678-9 2 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

• Overlevelse efter svær ecstasyforgiftning

  Translated title of the contribution: Survival after severe ecstasy intoxicationDahl, M. K., Johansen, S. S., Ramlau, J. & Jensen, K. A., 3 Nov 2008, In: Ugeskrift for Laeger. 170, 45

  Research output: Contribution to journal › Journal article › Research › peer-review

  • N-Methyl-3,4-methylenedioxyamphetamine 100%
  • Rhabdomyolysis 46%
  • Disseminated Intravascular Coagulation 43%
  • Survival 41%
  • Toxicology 36%
  2 Citations (Scopus)
• 2007

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

  Johansen, S. S. & Bhatia, H. M., 2007, In: Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences. 852, 1-2, p. 338-344 6 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  67 Citations (Scopus)
• 2006

  Blood and Tissue Concentrations of Drugs Found in Fatal Poisonings in Eastern Denmark During a Five-year Period (1998-2002)

  Petersen, H. W. & Johansen, S. S., 2006, Texas, USA: SOFT 2006, p. 64.

  Research output: Working paper › Research

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

  Rasmussen, L. B., Olsen, K. H. & Johansen, S. S., 2006, In: Journal of Chromatography - B. 842, p. 136-141

  Research output: Contribution to journal › Journal article › Research › peer-review

• 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

  Rasmussen, L. B., Olsen, K. H. & Johansen, S. S., 2 Oct 2006, In: Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences. 842, 2 SPEC. ISS., p. 136-141 6 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • (S)-Amphetamine 100%
  • 3,4-methylenedioxyethamphetamine 92%
  • Amphetamines 72%
  • N-Methyl-3,4-methylenedioxyamphetamine 71%
  • Amphetamine 66%
  61 Citations (Scopus)

• Drug-facilitated sexual assaults (DFSA) in Denmark

  Johansen, S. S., Hilden, M., Nielsen, H., Stadsgaard, K. & Hansen, S. H., 2006, Texas, USA: SOFT 2006, p. 65.

  Research output: Working paper › Research
• 2005

  Drugs in injured drivers in Denmark

  Bernhoft, I. M., Steentoft, A., Johansen, S. S., Klitgaard, N. A., Larsen, L. B. & Hansen, L. B., 2005, In: Forensic Science International. 150, 2-3, p. 181-189

  Research output: Contribution to journal › Journal article › Research › peer-review

  36 Citations (Scopus)

• Forgiftningsdødsfald blandt narkomaner i Danmark i 2002

  Translated title of the contribution: Fatal poisoning among drug addicts in Denmark in 2002Steentoft, A., Hansen, A. C., Rollmann, D., Simonsen, K. W., Müller, I. B., Johansen, S. S., Petersen, H. W. & Petersen, A. P. F., 2 May 2005, In: Ugeskrift for Læger. 167, 18, p. 1954-1957 4 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

• Forgiftningsdødsfald blandt narkomaner i Danmark i 2002

  Steentoft, A., Kringsholm, B., Hansen, A. C., Rollmann, D., Simonsen, K. W., Müller, I. B., Johansen, S. S., Petersen, H. W. & Petersen, A. P. F., 2005, In: Ugeskrift for læger. 167, 18, p. 1954-57 4 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  7 Citations (Scopus)

• Håret sladrer

  Jornil, J. & Johansen, S. S., 2005, In: Dansk Politi. 11, p. 22-23

  Research output: Contribution to journal › Journal article › Research

• 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

  Johansen, S. S. & Lundsby Jensen, A. J., 2005, In: Journal of Chromatography - B. 825, 1, p. 21-28

  Research output: Contribution to journal › Journal article › Research › peer-review

  27 Citations (Scopus)

• Medicin, narkotika og færdselsuheld

  Barnhoft, I. M., Steentoft, A., Johansen, S. S. & Klitgaard, N. A., 2005, København.

  Research output: Book/Report › Report › Communication
• 2004

  A fatal overdose of the ergot derivative cabergoline

  Johansen, S. S. & Karkov, J. N. D., 2004, In: Forensic Science International. 146, 1, p. 47-51

  Research output: Contribution to journal › Journal article › Research › peer-review

  3 Citations (Scopus)

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

  Johansen, S. S. & Lundsby Jensen, A. J., 2004, In: Journal of Chromatography - B. 811, 1, p. 31-36

  Research output: Contribution to journal › Journal article › Research › peer-review

  14 Citations (Scopus)
• 2003

  A fatal case of amlodipine poisoning

  Johansen, S. S. & Genner, J., 2003, In: Journal of Clinical Forensic Medicine. 10, 3, p. 169-172

  Research output: Contribution to journal › Journal article › Research › peer-review

  21 Citations (Scopus)

• Fatal overdose of the herbicide bentazone

  Müller, I. B., Petersen, H. W., Johansen, S. S. & Theilade, P., 2003, In: Forensic Science International. 135, 3, p. 235-236

  Research output: Contribution to journal › Journal article › Research › peer-review

  8 Citations (Scopus)

• Three Fatal Cases of PMA and PMMA Poisoning in Denmark

  Johansen, S. S., Hansen, A. C., Müller, I. B., Lundemose, J. B. & Franzmann, M-B., 2003, In: Journal of Analytical Toxicology. 27, 4, p. 253-256

  Research output: Contribution to journal › Journal article › Research › peer-review

  51 Citations (Scopus)
• 2002

  Drugs Detected In Saliva Samples From Danish Drivers

  Steentoft, A., Johansen, S. S. & Müller, I. B., 2002, Proceedings at ICADTS 2002. ICADTS

  Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

• Ecstasy & Designer Amphetamines Findings in Drivers and Post-Mortem Cases in Denmark

  Johansen, S. S., 2002, Proceedings at ICADTS 2002. ICADTS

  Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

• Three fatal cases of PMA and PMMA poisoning in Denmark

  Johansen, S. S., Hansen, A. C., Müller, I. B., Banner Lundemose, J. & Franzmann, M-B., 2002, In: Scandinavian Journal of Forensic Science. 2/3, p. 38-40

  Research output: Contribution to journal › Journal article › Research › peer-review
• 2001

  Ecstasy i Danmark

  Johansen, S. S. & Müller, I. B., 2001, In: Dansk Kemi. 82, 11, p. 12-13

  Research output: Contribution to journal › Journal article › Research › peer-review

• Quantification of Methadone in forensic samples by LC-MS/MS

  Johansen, S. S. & Jensen, J. L., 2001, Ikke angivet. TIAFT, p. 204

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
• 2000

  Determination of Gamma-Hydroxybutyrate (GHB) by Headspace-GC/MS (FID) in Forensic Samples

  Johansen, S. S. & Felby, S., 2000, In: Problems of Forensic Sciences, 37th TIAFT Triennial Meeting. 43, p. 126-130

  Research output: Contribution to journal › Conference article › Research › peer-review

  4 Citations (Scopus)
• 1999

  Analysis of Creosote and Oil in Aqueous Contaminations by SPME

  Johansen, S. S., 1999, Applications of Solid Phase Microextraction. Letchworth, UK: Royal Society of Chemistry, p. 238-247

  Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

• Bionedbrydning af tjærestoffer i jord og grundvand

  Dyreborg, S., Broholm, K., Johansen, S. S., Arvin, E. & Licht, D., 1999, In: Vand og Jord. 6, 3, p. 84-91

  Research output: Contribution to journal › Journal article › Research › peer-review

• Ecstasy (MDMA) m.v.-et fænomen i retsmedicinen?

  Johansen, S. S. & Müller, I. B., 1999, In: Scandinavian Journal of Forensic Science. 5, 4, p. 77

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1998

  Heteroaromatic compounds and their biodegradation products on creosote-contaminated groundwater

  Johansen, S. S., Arvin, E., Mosbæk, H. & Hansen, A. B., 1998, In: Toxicological and Environmental Chemistry. 66, p. 195-228

  Research output: Contribution to journal › Journal article › Research › peer-review

  12 Citations (Scopus)
• 1997

  Degradation pathways of quinolines in a biofilm system under denitrifying conditions

  Johansen, S. S., Arvin, E., Mosbæk, H. & Hansen, A. B., 1997, In: Environmental Toxicology and Chemistry. 9, 16, p. 1821-1828

  Research output: Contribution to journal › Journal article › Research › peer-review

  24 Citations (Scopus)