Publications by authors named "Sebastian Rzeppa"

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QuEChERS as alternative extraction procedure in doping analyses.
Daniel Derwand, Sebastian Rzeppa, Sven C Voss, Annette Zschiesche, Annekathrin M Keiler

Drug Test Anal· September 2024

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Agreement of steroid profiles in Athlete Biological Passport residues and corresponding serum samples.
Simon König, Sebastian Rzeppa, Detlef Thieme, Annekathrin M Keiler

Drug Test Anal· August 2024

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Identification of human in vitro metabolites of the haemoglobin S polymerization inhibitor voxelotor for doping control purposes.
Sebastian Rzeppa, Sven C Voss, Detlef Thieme, Annekathrin M Keiler

Drug Test Anal· December 2023

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Detection of 18-methyl steroids: Case report on a forensic urine sample and corresponding dietary supplements.
Detlef Thieme, Patricia Anielski, Sebastian Rzeppa, Clemens A Wolf, Gerhard Wolber

Drug Test Anal· November 2022

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Emergence of the less common cannabinoid Δ -Tetrahydrocannabinol in a doping sample.
Sebastian Rzeppa, Joachim Große, Claudia Rautenberg, Detlef Thieme, Triin Lepp

Drug Test Anal· November 2021

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Pharmacokinetics of salmeterol and its main metabolite α-hydroxysalmeterol after acute and chronic dry powder inhalation in exercising endurance-trained men: Implications for doping control.
Søren Jessen, Victoria Becker, Sebastian Rzeppa, Vibeke Backer, Kasper Høtoft Bengtsen

Drug Test Anal· April 2021

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Evaluation of uncertainty sources in the determination of testosterone in urine by calibration-based and isotope dilution quantification using ultra high performance liquid chromatography tandem mass spectrometry.
J Pitarch-Motellón, A F Roig-Navarro, J V Sancho, M Ibáñez, N Fabregat-Cabello, Sebastian Rzeppa

J Chromatogr A· July 2017

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Terbutaline Accumulates in Blood and Urine after Daily Therapeutic Inhalation.
Nanna Krogh, Sebastian Rzeppa, Anders Dyreborg, Yvette Dehnes, Peter Hemmersbach

Med Sci Sports Exerc· June 2017

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Pharmacokinetics of nebulized and oral procaterol in asthmatic and non-asthmatic subjects in relation to doping analysis.
Nanna Krogh, Vibeke Backer, Sebastian Rzeppa, Peter Hemmersbach, Morten Hostrup

Drug Test Anal· October 2016

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The influence of exercise and dehydration on the urine concentrations of salbutamol after inhaled administration of 1600 µg salbutamol as a single dose in relation to doping analysis.
Christoffer Bjerre Haase, Vibeke Backer, Anders Kalsen, Sebastian Rzeppa, Peter Hemmersbach

Drug Test Anal· July 2016

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Pharmacokinetics of Oral and Inhaled Terbutaline after Exercise in Trained Men.
Anders Dyreborg, Nanna Krogh, Vibeke Backer, Sebastian Rzeppa, Peter Hemmersbach

Front Pharmacol· July 2016

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Urine concentrations of oral salbutamol in samples collected after intense exercise in endurance athletes.
Morten Hostrup, Anders Kalsen, Michael Auchenberg, Sebastian Rzeppa, Peter Hemmersbach

Drug Test Anal· June 2014

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Distribution and quantification of flavan-3-ols and procyanidins with low degree of polymerization in nuts, cereals, and legumes.
Katharina Bittner, Sebastian Rzeppa, Hans-Ulrich Humpf

J Agric Food Chem· September 2013

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Isolation and structure elucidation of two new cytotoxic metabolites from red yeast rice.
Ines Ferse, Marina Langlitz, Karin Kleigrewe, Sebastian Rzeppa, Marlies Lenczyk

Nat Prod Res· February 2013

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Systematic approach for structure elucidation of polyphenolic compounds using a bottom-up approach combining ion trap experiments and accurate mass measurements.
Christoph von Bargen, Florian Hübner, Benedikt Cramer, Sebastian Rzeppa, Hans-Ulrich Humpf

J Agric Food Chem· November 2012

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Urinary excretion and metabolism of procyanidins in pigs.
Sebastian Rzeppa, Katharina Bittner, Susanne Döll, Sven Dänicke, Hans-Ulrich Humpf

Mol Nutr Food Res· April 2012

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Intestinal metabolism of two A-type procyanidins using the pig cecum model: detailed structure elucidation of unknown catabolites with Fourier transform mass spectrometry (FTMS).
Anna Engemann, Florian Hübner, Sebastian Rzeppa, Hans-Ulrich Humpf

J Agric Food Chem· January 2012

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Analysis of Flavan-3-ols and procyanidins in food samples by reversed phase high-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry (RP-HPLC-ESI-MS/MS).
Sebastian Rzeppa, Christoph Von Bargen, Katharina Bittner, Hans-Ulrich Humpf

J Agric Food Chem· October 2011

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Complex flavonoids in cocoa: synthesis and degradation by intestinal microbiota.
Gordon Van't Slot, Wera Mattern, Sebastian Rzeppa, Dagmar Grewe, Hans-Ulrich Humpf

J Agric Food Chem· August 2010

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