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Utveckling och validering av en LC-MS/MS metod för kvantifiering av clopidogrel och dess metabolit i plasma
Linköping University, Department of Physics, Chemistry and Biology.
2010 (Swedish)Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
Abstract [en]

Clopidogrel is an antiplatelet substance that prevents blood coagulation in the arteries. It is an inactive pro drug that becomes activated after first-pass metabolism by the liver. The active metabolite of clopidogrel is 2-oxoclopidogrel, which is unstable therefore pharmacokinetic data is obtained by measuring the inactive metabolite clopidogrel acid in plasma. Clopidogrel is taken orally in tablet form. The aim of this project was to develop a LC-MS/MS method for quantification of clopidogrel and its metabolite in plasma.


The method has been developed by optimizing the sample preparation. Different extraction procedures and extraction columns were tested, for example, by changing the extraction column from a C8 silica sorbent to Oasis HLB (a polymer sorbent). Different internal standards were evaluated as a result of discovering the signal suppression of the previous internal standard clopidogrel acid.  Flupentixol was found to be the best candidate.

Place, publisher, year, edition, pages
2010. , 38 p.
Keyword [sv]
LC-MS/MS, SRM, clopidogrel, clopidogrelsyra
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-58731ISRN: LITH-IFM-G--EX--10/2261--SEOAI: diva2:345262
Physics, Chemistry, Mathematics
Available from: 2010-08-25 Created: 2010-08-24 Last updated: 2011-03-22Bibliographically approved

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Shamon, Doreen-Marie
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Department of Physics, Chemistry and Biology
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