Linked Life Data

12798164

Source:http://linkedlifedata.com/resource/pubmed/id/12798164

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2003-6-11
pubmed:abstractText
The rapid, selective and sensitive liquid chromatographic-ion trap mass spectrometric (LC-MS(n)) method was developed and validated for determination of three major components (isovaleryspiramycins, ISV-SPMs) of a novel macrolide antibiotic bitespiramycin and their major active metabolites (spiramycins, SPMs) in rat plasma. The analytes ISV-SPMs, SPMs, internal standard roxithromycin and azithromycin were extracted from plasma samples by liquid-liquid extraction, and chromatographed on a C(18) column using two mobile phase systems. Detection was carried out on an ion trap mass spectrometer by selected reaction monitoring (SRM) mode via electrospray ionization (ESI). Three components (ISV-SPM I, II, III or SPM I, II, III) could be simultaneously determined within 6.5 min. Linear calibration curves were obtained in the concentration ranges of 4-200 ng/ml for ISV-SPM I and SPM I, 12-600 ng/ml for ISV-SPM II and SPM II, and 18-900 ng/ml for ISV-SPM III and SPM III. The intra- and inter-run precision (RSD), calculated from quality control (QC) samples were less than 8.8 and 10.4% for ISV-SPMs, and 9.3 and 11.2% for SPMs, respectively. The method was applied for the evaluation of the pharmacokinetics of bitespiramycin in rats following peroral/intravenous administration.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1570-0232
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
791
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
45-53
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Determination of three major components of bitespiramycin and their major active metabolites in rat plasma by liquid chromatography-ion trap mass spectrometry.
pubmed:affiliation
Laboratory of Drug Metabolism and Pharmacokinetics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China. zhongdf@china.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't