Identification and monitoring of octopamine sulfoconjugate in urine by LC/(ESI)-MS/MS

Anne-Katrin Orlovius, Sven Guddat, Maria Kristina Parr, A. Koch, M. Gütschow, Mario Thevis, Wilhelm Schänzer

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitrag - Aufsatz in KonferenzbandForschung

Abstract

Herein we report the synthesis and characterization of the sulfoconjugate of octopamine and the excretion profile of the sulfoconjugated compound compared to the unchanged drug. The evaded hydrolysis of the compounds enables combination with other substances in screening procedures: for example direct determination of intact sulfoconjugates in combination with diuretics, stimulants, β2-agonists, plasma volume expanders and narcotics without any sample preparation except addition of internal standard. In order to investigate the intact conjugate of octopamine as well as the unchanged therapeutic agent and phase-I metabolites, urine samples were extracted by means of solid phase extraction (SPE) and subsequently analyzed by liquid chromatography tandem mass spectrometry. The employed assay was validated including intra-day and inter-day precision, limit of detection, specificity and recovery. Further, post-administration urine samples were analyzed according to described sample preparation and evaluated concerning the quantity of octopamine and its sulfoconjugate. Einleitung gekürzt
OriginalspracheEnglisch
TitelRecent advances in doping analysis (19) : Proceedings of the Manfred-Donike-Workshop, 29th Cologne Workshop on Dope Analysis : 13th to 18th February 2011
Herausgeber*innenWilhelm Schänzer, Hans Geyer, A. Gotzmann, Ute Mareck
Seitenumfang9
Herausgeber (Verlag)Sportverlag Strauß
Erscheinungsdatum2011
Seiten34-42
PublikationsstatusVeröffentlicht - 2011
VeranstaltungCologne Workshop on Dope Analysis - Köln, Deutschland
Dauer: 13.02.201118.02.2011
Konferenznummer: 29

Fachgebiete und Schlagwörter

  • Biochemie
  • Doping
  • Dopinganalyse
  • Dopingbekämpfung
  • Dopingnachweis
  • Massenspektrometrie
  • Sportmedizin
  • Stimulans
  • Synthese
  • Urinuntersuchung

Fingerprint

Untersuchen Sie die Forschungsthemen von „Identification and monitoring of octopamine sulfoconjugate in urine by LC/(ESI)-MS/MS“. Zusammen bilden sie einen einzigartigen Fingerprint.

Zitation