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Nikolai Stephanson

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Journal of Mass Spectrometry : JMS|June 15, 2007
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 spectrometryNikolai Stephanson, Anders Helander, Olof Beck
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|July 16, 2008
Accurate identification and quantification of 11-nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid in urine drug testing: evaluation of a direct high efficiency liquid chromatographic-mass spectrometric methodNikolai Stephanson, Martin Josefsson, Robert Kronstrand, et al.
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|January 25, 2005
Determination of urinary 5-hydroxytryptophol glucuronide by liquid chromatography-mass spectrometryNikolai Stephanson, Helen Dahl, Anders Helander, et al.
Therapeutic Drug Monitoring|September 28, 2002
Direct quantification of ethyl glucuronide in clinical urine samples by liquid chromatography-mass spectrometryNikolai Stephanson, Helen Dahl, Anders Helander, et al.
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|June 4, 2013
Multicomponent LC-MS/MS screening method for detection of new psychoactive drugs, legal highs, in urine-experience from the Swedish populationYasir Al-Saffar, Niclas Nikolai Stephanson, Olof Beck
Journal of Analytical Toxicology|June 11, 2002
Comparison of urinary excretion characteristics of ethanol and ethyl glucuronideHelen Dahl, Nikolai Stephanson, Olof Beck, et al.
Journal of Mass Spectrometry : JMS|April 8, 2025
Automated and Fully Validated High-Throughput LC-MS/MS Assay for Analyzing Multiple Drugs of Abuse in Oral Fluids Using Novel Features in Sample Preparation and Chromatographic ConditionsJoakim Tan, Alexia Rylski, Anders Bergqvist, et al.
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|November 17, 2012
Evaluation of a direct high-capacity target screening approach for urine drug testing using liquid chromatography-time-of-flight mass spectrometryAljona Saleh, Niclas Nikolai Stephanson, Ingrid Granelli, et al.
Alcohol and Alcoholism (Oxford, Oxfordshire)|May 30, 2007
Biomarkers to disclose recent intake of alcohol: potential of 5-hydroxytryptophol glucuronide testing using new direct UPLC-tandem MS and ELISA methodsOlof Beck, Nikolai Stephanson, Michael Böttcher, et al.
Forensic Science International|November 21, 2007
Comparison of ethyl glucuronide in hair with phosphatidylethanol in whole blood as post-mortem markers of alcohol abusePeter Bendroth, Robert Kronstrand, Anders Helander, et al.
Pageof 2

Showing results (1-10 of 12) with videos related to

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Pageof 2
Journal of Mass Spectrometry : JMS|June 15, 2007
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 spectrometryNikolai Stephanson, Anders Helander, Olof Beck
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|July 16, 2008
Accurate identification and quantification of 11-nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid in urine drug testing: evaluation of a direct high efficiency liquid chromatographic-mass spectrometric methodNikolai Stephanson, Martin Josefsson, Robert Kronstrand, et al.
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|January 25, 2005
Determination of urinary 5-hydroxytryptophol glucuronide by liquid chromatography-mass spectrometryNikolai Stephanson, Helen Dahl, Anders Helander, et al.
Therapeutic Drug Monitoring|September 28, 2002
Direct quantification of ethyl glucuronide in clinical urine samples by liquid chromatography-mass spectrometryNikolai Stephanson, Helen Dahl, Anders Helander, et al.
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|June 4, 2013
Multicomponent LC-MS/MS screening method for detection of new psychoactive drugs, legal highs, in urine-experience from the Swedish populationYasir Al-Saffar, Niclas Nikolai Stephanson, Olof Beck
Journal of Analytical Toxicology|June 11, 2002
Comparison of urinary excretion characteristics of ethanol and ethyl glucuronideHelen Dahl, Nikolai Stephanson, Olof Beck, et al.
Journal of Mass Spectrometry : JMS|April 8, 2025
Automated and Fully Validated High-Throughput LC-MS/MS Assay for Analyzing Multiple Drugs of Abuse in Oral Fluids Using Novel Features in Sample Preparation and Chromatographic ConditionsJoakim Tan, Alexia Rylski, Anders Bergqvist, et al.
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences|November 17, 2012
Evaluation of a direct high-capacity target screening approach for urine drug testing using liquid chromatography-time-of-flight mass spectrometryAljona Saleh, Niclas Nikolai Stephanson, Ingrid Granelli, et al.
Alcohol and Alcoholism (Oxford, Oxfordshire)|May 30, 2007
Biomarkers to disclose recent intake of alcohol: potential of 5-hydroxytryptophol glucuronide testing using new direct UPLC-tandem MS and ELISA methodsOlof Beck, Nikolai Stephanson, Michael Böttcher, et al.
Forensic Science International|November 21, 2007
Comparison of ethyl glucuronide in hair with phosphatidylethanol in whole blood as post-mortem markers of alcohol abusePeter Bendroth, Robert Kronstrand, Anders Helander, et al.
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