Search Results - "Stephanson, Niclas"

Evaluation of a direct high-capacity target screening approach for urine drug testing using liquid chromatography–time-of-flight mass spectrometry by Saleh, Aljona, Stephanson, Niclas Nikolai, Granelli, Ingrid, Villén, Tomas, Beck, Olof

“…► A multi target analytical approach for clinical drugs of abuse screening was explored. ► The analysis time was short. ► The selectivity was based on high…”
Get full text

Multicomponent LC–MS/MS screening method for detection of new psychoactive drugs, legal highs, in urine—Experience from the Swedish population by Al-Saffar, Yasir, Stephanson, Niclas Nikolai, Beck, Olof

“…•New drugs of abuse identified by information from customs, police and poison center in Sweden were included as analytes.•A convenient LC–MS/MS method was…”
Get full text

Method validation and application of a liquid chromatography–tandem mass spectrometry method for drugs of abuse testing in exhaled breath by Stephanson, Niclas, Sandqvist, Sören, Lambert, Marjan Shafaati, Beck, Olof

“…•First new fully validated method.•New matrix for drug testing.•Applied in routine use.•New data from workplace drug testing.•Demonstration of highly sensitive…”
Get full text

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 by Beck, Olof, Stephanson, Niclas, Sandqvist, Sören, Franck, Johan

“…Exhaled breath has recently been identified as a matrix for the detection of drugs of abuse. This work aims to further document this application using a new…”
Get more information

Multicomponent LCaMS/MS screening method for detection of new psychoactive drugs, legal highs, in urineaExperience from the Swedish population by Al-Saffar, Yasir, Stephanson, Niclas, Beck, Olof

“…The advent of new not yet legally regulated psychoactive substances sold over the Internet has created a challenge for clinical toxicology and drug testing…”
Get full text

Detection of Drugs of Abuse in Exhaled Breath from Users Following Recovery from Intoxication by Beck, Olof, Stephanson, Niclas, Sandqvist, Sören, Franck, Johan

“…It has recently been demonstrated that amphetamine, methadone and tetrahydrocannabinol are detectable in exhaled breath following intake. Exhaled breath,…”
Get full text

Determination of Amphetamine and Methylphenidate in Exhaled Breath of Patients Undergoing Attention-Deficit/ Hyperactivity Disorder Treatment by BECK, Olof, STEPHANSON, Niclas, SANDQVIST, Sören, FRANCK, Johan

“…It has been discovered recently that exogenous substances are detectable in exhaled breath after intake. Exhaled breath therefore constitutes a new possible…”
Get full text

A randomized study comparing plasma concentration of ropivacaine after local infiltration analgesia and femoral block in primary total knee arthroplasty by Affas, Fatin, Stiller, Carl-Olav, Nygårds, Eva-Britt, Stephanson, Niclas, Wretenberg, Per, Olofsson, Christina

“…Highlights ► High dose ropivacaine is used in local infiltration analgesia (LIA) in knee arthroplasty. ► Some patients reach potentially toxic ropivacaine…”
Get full text

Liquid Chromatography : Mass Spectrometry Study of Two Biochemical Alcohol Markers by Stephanson, Niclas Nikolai

“…The interest in biochemical alcohol markers for detecting acute and chronic alcohol consumption has expanded greatly during recent years. The development and…”
Get full text