Development of a sensitive liquid chromatography method coupled with a tandem mass spectrometric detection for the clinical analysis of vinflunine and 4-O-deacetyl vinflunine in blood, urine and faeces.
J Chromatogr B Analyt Technol Biomed Life Sci
; 853(1-2): 294-302, 2007 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-17416213
ABSTRACT
A sensitive and specific liquid chromatographic method coupled with tandem mass spectrometric detection was set up and fully validated for the simultaneous quantification of vinflunine (VFL) and its pharmacologically active metabolite, 4-O-deacetyl vinflunine (DVFL). The two compounds, as well as vinblastine (used as internal standard), were deproteinised from blood and faeces, analysed on a cyano type column and detected on a Micromass Quattro II system in the positive ion mode after ionisation using an electrospray ion source. In blood, linearity was assessed up to 200 ng/ml for vinflunine and 100 ng/ml for 4-O-deacetyl vinflunine. The lower limit of quantification was validated at 250 pg/ml for both compounds. In other biological media, the linearity was assessed within the same range; the limit of quantification was adjusted according to the expected concentration levels of each compound. This method was first developed in order to identify the structures and to elucidate the metabolic pathway of vinflunine. Thanks to its high sensitivity and specificity, the method has enabled the quantification of vinflunine and 4-O-deacetyl vinflunine in blood at trace levels, and has contributed to the knowledge of vinflunine metabolism by monitoring up to 10 metabolites.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vimblastina
/
Cromatografia Líquida de Alta Pressão
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Espectrometria de Massas por Ionização por Electrospray
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Espectrometria de Massas em Tandem
/
Fezes
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article