Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-5-11
pubmed:abstractText
A sensitive, rapid and selective liquid chromatography-positive electrospray ionization tandem mass spectrometry (LC-(ESI+)-MS-MS) method has been developed and validated for the simultaneous quantification of beclomethasone dipropionate (BDP) and its active metabolite, beclomethasone 17-monopropionate (17-BMP) in rat plasma and different tissues using fluticasone propionate (FP) as the internal standard. The method was validated over a linear range from 0.05 to 5 ng/ml for both analytes. A solid-phase extraction procedure was used for plasma samples and a liquid-liquid extraction procedure for tissues samples (lung, liver and kidney). The between-day and within-day coefficients of variation for all compounds were </= 20% at the concentrations of lower limit of quantification (LLOQ) and </= 15% at other quality control concentrations. The same method was also partially validated for human plasma. The utility of this assay was demonstrated by monitoring BDP and 17-BMP plasma and tissue concentrations in an animal study designed for evaluation of pulmonary targeting after intratracheal administration of BDP dry powder.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1570-0232
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
805
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
203-10
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Simultaneous quantification of beclomethasone dipropionate and its metabolite, beclomethasone 17-monopropionate in rat and human plasma and different rat tissues by liquid chromatography-positive electrospray ionization tandem mass spectrometry.
pubmed:affiliation
Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA.
pubmed:publicationType
Journal Article, Validation Studies