Research output per year
Research output per year
Personal profile
Primary fields of research
Analytical chemistry of pharmaceuticals and drugs of abuse in biological materials
Forensic toxicology in alternative matrices such as hair and brain tissue
Postmortem pharmacology and reference concentrations of psycoactive drugs
Development and validation of analytical methods using UHPLC-MS/MS
CV
Current position
2015-: Forensic Chemist, Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health Sciences, University of Copenhagen.
Previous positions
2008-2015: Forensic Chemist and PhD Student, Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health Sciences, University of Copenhagen.
2006-2008: Forensic Chemist, Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health Sciences, University of Copenhagen.
2004-2006: Chemist, National Food Institute, Denmark
2001-2003: Research Assistant, The Geological Survey of Denmark and Greenland (GEUS), University of Copenhagen.
Education
2015: PhD Degree in Forensic Medicine and Anthropology, Department of Forensic Medicine, University of Copenhagen.
2004: MSc in Environmental Chemistry, University of Copenhagen.
Present research
Analytical chemistry of pharmaceuticals and drugs of abuse in biological materials
Forensic toxicology in alternative biological matrices such as hair and brain tissue
Postmortem pharmacology and reference concentrations of psycoactive drugs
Development and validation of analytical methods using UHPLC-MS/MS
Previous research
Environmental chemistry
Food chemistry
Organic analytical chemistry
Keywords
- Faculty of Health and Medical Sciences
- Forensic toxicology
- hair analysis
- analytical chemistry
- alternative matrices
- drug rape
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Distribution of zopiclone and main metabolites in hair following a single dose
Hansen, S. L., Johansen, S. S., Nielsen, M. K. K., Nilsson, G. & Kronstrand, R., Jan 2020, In: Forensic Science International. 306, p. 110074Research output: Contribution to journal › Journal article › Research › peer-review
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Segmental Hair Analysis-Interpretation of the Time of Drug Intake in Two Patients Undergoing Drug Treatment
Wang, X., Johansen, S. S., Nielsen, M. K. K. & Linnet, K., May 2019, In: Journal of Forensic Sciences. 64, 3, p. 950-955Research output: Contribution to journal › Journal article › Research › peer-review
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Hair analysis in toxicological investigation of drug-facilitated crimes in Denmark over a 8-year period
Wang, X., Johansen, S. S., Nielsen, M. K. K. & Linnet, K., 1 Apr 2018, In: Forensic Science International. 285, p. e1-e12 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Post-mortem quetiapine concentrations in hair segments of psychiatric patients - Correlation between hair concentration, dose and concentration in blood
Günther, K. N., Johansen, S. S., Nielsen, M. K. K., Wicktor, P., Banner, J. & Linnet, K., Apr 2018, In: Forensic Science International. 285, p. 58-64 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Validation of a fully automated solid‐phase extraction and ultra‐high‐performance liquid chromatography–tandem mass spectrometry method for quantification of 30 pharmaceuticals and metabolites in post‐mortem blood and brain samples
Nielsen, M. K. K., Nedahl, M., Johansen, S. S. & Linnet, K., Jul 2018, In: Drug Testing and Analysis. 10, 7, p. 1147-1157Research output: Contribution to journal › Journal article › Research › peer-review
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Targeted analysis of 116 drugs in hair by UHPLC-MS/MS and its application to forensic cases
Wang, X., Johansen, S. S., Nielsen, M. K. K. & Linnet, K., Aug 2017, In: Drug Testing and Analysis. 9, 8, p. 1137–1151Research output: Contribution to journal › Journal article › Research › peer-review
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Evaluation of poly-drug use in methadone-related fatalities using segmental hair analysis
Nielsen, M. K. K., Johansen, S. S. & Linnet, K., 1 Mar 2015, In: Forensic Science International. 248, p. 134–139 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Pre-analytical and analytical variation of drug determination in segmented hair using ultra-performance liquid chromatography-tandem mass spectrometry
Nielsen, M. K. K., Johansen, S. S. & Linnet, K., Jan 2014, In: Forensic Science International. 234, p. 16-21 6 p.Research output: Contribution to journal › Journal article › Research › peer-review