Nikolai Stephanson

Publikationer
CV
Populärvetenskap och samverkan

Artiklar

Article: JOURNAL OF MASS SPECTROMETRY. 2017;52(8):497-506
Use of LC-HRMS in full scan-XIC mode for multi-analyte urine drug testing - a step towards a 'black-box' solution?
Stephanson NN; Signell P; Helander A; Beck O
Journal article: JOURNAL OF MASS SPECTROMETRY. 2017;52(8):ii
Use of LC‐HRMS in full scan‐XIC mode for multi‐analyte urine drug testing – a step towards a ‘black‐box’ solution?
Stephanson NN; Signell P; Helander A; Beck O
Article: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2015;985:189-196
Method validation and application of a liquid chromatography-tandem mass spectrometry method for drugs of abuse testing in exhaled breath
Stephanson N; Sandqvist S; Lambert MS; Beck O
Article: ACTA ANAESTHESIOLOGICA SCANDINAVICA. 2014;58(9):1140-1145
Plasma concentration of ketorolac after local infiltration analgesia in hip arthroplasty
Affas F; Eksborg S; Wretenberg P; Olofsson C; Stephanson N; Stiller C-O
Article: THERAPEUTIC DRUG MONITORING. 2014;36(4):528-534
Determination of Amphetamine and Methylphenidate in Exhaled Breath of Patients Undergoing Attention-Deficit/Hyperactivity Disorder Treatment
Beck O; Stephanson N; Sandqvist S; Franck J
Article: DRUG TESTING AND ANALYSIS. 2014;6(4):317-324
Direct and efficient liquid chromatographic-tandem mass spectrometric method for opiates in urine drug testing - importance of 6-acetylmorphine and reduction of analytes
Andersson M; Stephanson N; Ohman I; Terzuoli T; Lindh JD; Beck O
Article: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2013;930:112-120
Multicomponent LC-MS/MS screening method for detection of new psychoactive drugs, legal highs, in urine-Experience from the Swedish population
Al-Saffar Y; Stephanson NN; Beck O
Article: JOURNAL OF BREATH RESEARCH. 2013;7(2):026006
Detection of drugs of abuse in exhaled breath using a device for rapid collection: comparison with plasma, urine and self-reporting in 47 drug users
Beck O; Stephanson N; Sandqvist S; Franck J
Article: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2012;909:6-13
Evaluation of a direct high-capacity target screening approach for urine drug testing using liquid chromatography-time-of-flight mass spectrometry
Saleh A; Stephanson NN; Granelli I; Villen T; Beck O
Article: JOURNAL OF ANALYTICAL TOXICOLOGY. 2012;36(9):638-646
Detection of Drugs of Abuse in Exhaled Breath from Users Following Recovery from Intoxication
Beck O; Stephanson N; Sandqvist S; Franck J
Article: ACTA ANAESTHESIOLOGICA SCANDINAVICA. 2012;56(8):1026-1031
Pharmacokinetics after a single intravenous dose of the opioid ketobemidone in neonates
Lundeberg S; Stephanson N; Stiller C-O; Eksborg S
Article: IMMUNOPHARMACOLOGY AND IMMUNOTOXICOLOGY. 2012;34(4):679-685
Serotonin and its 5-HT1 receptor in human mastocytosis
Ritter M; El-Nour H; Hedblad M-A; Butterfield JH; Beck O; Stephanson N; Holst M; Giscombe R; Azmitia EC; Nordlind K
Article: SCANDINAVIAN JOURNAL OF PAIN. 2012;3(1):46-51
A randomized study comparing plasma concentration of ropivacaine after local infiltration analgesia and femoral block in primary total knee arthroplasty.
Affas F; Stiller C-O; Nygårds E-B; Stephanson N; Wretenberg P; Olofsson C
Article: ACTA ANAESTHESIOLOGICA SCANDINAVICA. 2010;54(4):435-441
Pharmacokinetics after an intravenous single dose of the opioid ketobemidone in children
Lundeberg S; Stephanson N; Lafolie P; Olsson GL; Stiller C-O; Eksborg S
Article: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2008;871(1):101-108
Accurate identification and quantification of 11-nor-Δ⁹-tetrahydrocannabinol-9-carboxylic acid in urine drug testing:: Evaluation of a direct high efficiency liquid chromatographic-mass spectrometric method
Stephanson N; Josefsson M; Kronstrand R; Beck O
Article: JOURNAL OF PSYCHOACTIVE DRUGS. 2008;40(2):219-222
Ecstasy analogues found in cacti
Bruhn JG; El-Seedi HR; Stephanson N; Beck O; Shulgin AT
Article: ALCOHOL AND ALCOHOLISM. 2008;43(2):187-191
Comparison between the urinary alcohol markers EtG, EtS, and GTOL/5-HIAA in a controlled drinking experiment
Hoiseth G; Bernard JP; Stephanson N; Normann PT; Christophersen AS; Morland J; Helander A
Article: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2008;861(1):22-28
Direct injection LC-MS/MS method for identification and quantification of amphetamine, methamphetamine, 3,4-methylenedioxyamphetamine and 3,4-methylenedioxymethamphetamine in urine drug testing
Andersson M; Gustavsson E; Stephanson N; Beck O
Article: JOURNAL OF MASS SPECTROMETRY. 2007;42(7):940-949
Alcohol biomarker analysis: simultaneous determination of 5-hydroxytryptophol glucuronide and 5-hydroxyindoleacetic acid by direct injection of urine using ultra-performance liquid chromatography-tandem mass spectrometry
Stephanson N; Helander A; Beck O
Article: JOURNAL OF MASS SPECTROMETRY. 2007;42(7):881-889
Validation of direct injection electrospray LC-MS/MS for confirmation of opiates in urine drug testing
Gustavsson E; Andersson M; Stephanson N; Beck O
Article: ALCOHOL AND ALCOHOLISM. 2007;42(4):321-325
Biomarkers to disclose recent intake of alcohol:: Potential of 5-hydroxytryptophol glucuronide testing using new direct UPLC-tandem MS and ELISA methods
Beck O; Stephanson N; Boettcher M; Dahmen N; Fehr C; Helander A
Article: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2005;816(1-2):107-112
Determination of urinary 5-hydroxytryptophol glucuronide by liquid chromatography-mass spectrometry
Stephanson N; Dahl H; Helander A; Beck O
Article: JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2004;805(1):87-91
Determination of perhexiline and hydroxyperhexiline in plasma by liquid chromatography-mass spectrometry
Beck O; Stephanson N; Morris RG; Sallustio BC; Hjemdahl P
Journal article: HEARING, BALANCE AND COMMUNICATION. 2004;2(3):169-173
Vibration‐induced hearing loss: comparison of the protective efficacy of antioxidants and neurotrophins
Bretlau P; Zou J; Pyykkö I; Toppila E; Olovius NP; Stephanson N; Beck O; Miller J
Article: ORL-JOURNAL FOR OTO-RHINO-LARYNGOLOGY HEAD AND NECK SURGERY. 2003;65(3):155-161
Comparison of the protective efficacy of Neurotrophins and antioxidants for vibration-induced trauma
Zou J; Bretlau P; Pyykkö I; Toppila E; Olovius NP; Stephanson N; Beck O; Miller JM
Article: THERAPEUTIC DRUG MONITORING. 2002;24(5):645-651
Direct quantification of ethyl glucuronide in clinical urine samples by liquid chromatography-mass spectrometry
Stephanson N; Dahl H; Helander A; Beck O
Article: JOURNAL OF ANALYTICAL TOXICOLOGY. 2002;26(4):201-204
Comparison of urinary excretion characteristics of ethanol and ethyl glucuronide
Dahl H; Stephanson N; Beck O; Helander A
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Alla övriga publikationer

Book chapter: CRITICAL ISSUES IN ALCOHOL AND DRUGS OF ABUSE TESTING. 2019;p. 321-332
Chapter 23 Application of Liquid Chromatography Combined With High Resolution Mass Spectrometry for Urine Drug Testing
Beck O; Rylski A; Stephanson NN
Conference publication: THERAPEUTIC DRUG MONITORING. 2013;35(5):699
Application of Drug Testing Using Exhaled Breath in a Criminal Justice Setting
Beck O; Stephanson N; Shafaati M; Sandqvist S
Conference publication: THERAPEUTIC DRUG MONITORING. 2011;33(4):484
LC-MS/MS analysis of new "internet drugs"
Stephanson N; Al-Saffar Y; Beck O
Conference publication: THERAPEUTIC DRUG MONITORING. 2011;33(4):484
Experience from clinical analysis of the alcohol biomarker ethyl glucuronide (EtG) in urine
Villen T; Beck O; Stephanson N; Helander A
Published conference paper: FORENSIC SCIENCE INTERNATIONAL. 2008;176(1):76-81
Comparison of ethyl glucuronide in hair with phosphatidylethanol in whole blood as post-mortem markers of alcohol abuse
Bendroth P; Kronstrand R; Helander A; Greby J; Stephanson N; Krantz P
Thesis / dissertation: 2007
Liquid chromatography : mass spectrometry study of two biochemical alcohol markers
Stephanson, Niclas Nikolai
Conference publication: THERAPEUTIC DRUG MONITORING. 2007;29(4):461
Determination of Δ9-tetrahydrocannabinol carboxylic acid by direct injection of urine using UPLC-MS/MS
Stephanson N; Beck O
Conference publication: THERAPEUTIC DRUG MONITORING. 2007;29(4):494
Validation of direct injection LC-MS/MS for identification and quantification of amphetamines in urine
Beck O; Andersson M; Gustavsson E; Stephanson N

Anställningar

Anknuten till Forskning, Laboratoriemedicin, Karolinska Institutet, 2022-2025

Examina och utbildning

MEDICINE DOKTORSEXAMEN, Institutionen för medicin, Solna, Karolinska Institutet, 2007

Artiklar

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Anställningar

Examina och utbildning

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