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Drug Testing and Analysis|January 15, 2021
Single hair analysis: Validation of a screening method for over 150 analytes and application on documented single-dose casesChristopher Wiedfeld, Gisela Skopp, Frank MusshoffDrug Testing and Analysis|March 22, 2024
Single hair analysis for gamma-hydroxybutyric acid-Method optimization, validation, and applicationChristopher Wiedfeld, Gisela Skopp, Frank MusshoffInternational Journal of Legal Medicine|February 18, 2018
Comparison of concentrations of drugs between blood samples with and without fluoride additive-important findings for Δ<sup>9</sup>-tetrahydrocannabinol and amphetamineChristopher Wiedfeld, Julia Krueger, Gisela Skopp, et al.Drug Testing and Analysis|January 17, 2022
Application of single hair analysis in a doping case involving amphetamineChristopher Wiedfeld, Gisela Skopp, Detlef Thieme, et al.Drug Testing and Analysis|July 25, 2023
Monitoring of phosphatidylethanol in dried blood spots and of ethyl glucuronide in hair over 6 months of alcohol consumptionJosefine Herzog, Gisela Skopp, Frank MusshoffJournal of Analytical Toxicology|October 26, 2022
Development and Validation of Seven Phosphatidylethanol Homologues in Dried Blood Spots Including Preliminary Results after Excessive Use of an Ethanol-Based Hand SanitizerJosefine Herzog, Gisela Skopp, Frank MusshoffDrug Testing and Analysis|September 24, 2021
The effect of creatine ingestion on urinary creatinine concentration: Does supplementation mask a heavy dilution?Simon Franz, Gisela Skopp, Frank MusshoffInternational Journal of Legal Medicine|October 3, 2022
Will tetrahydrocannabinol be formed from cannabidiol in gastric fluid? An in vivo experimentSimon Franz, Josefine Herzog, Gisela Skopp, et al.Drug Testing and Analysis|May 31, 2018
Proof of active cannabis use comparing 11-hydroxy-∆9-tetrahydrocannabinol with 11-nor-9-carboxy-tetrahydrocannabinol concentrationsThomas Franz, Gisela Skopp, Gerlinde Schwarz, et al.Drug Testing and Analysis|December 3, 2023
Storage stability of phosphatidylethanol homologues in whole blood and dried blood spots of nonalcoholics at different temperatures over 60 daysJosefine Herzog, Gisela Skopp, Frank Musshoff, et al.Pageof 20