Linked Life Data

15712293

Source:http://linkedlifedata.com/resource/pubmed/id/15712293

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2005-3-1
pubmed:abstractText
A quantitative bioanalytical method involving chemical derivatization, solid phase extraction (SPE) and high-performance liquid chromatography/tandem mass spectrometry (HPLC/MS/MS) was developed for the determination of 4-fluorobenzyl chloride (4FBCl) in human plasma. 4FBCl is a volatile and reactive molecule that is very unstable in human plasma. In order to stabilize 4FBCl in plasma samples prior to storage, 4-dimethylaminopyridine (DMAP) was added, forming a stable quaternary amine salt derivative. A three-step weak cation-exchange SPE procedure was then employed to remove excess DMAP. The plasma extracts were analyzed by HPLC/MS/MS using a TurboIonspray interface and multiple reaction monitoring. Unlike 4FBCl, the quaternary amine derivative shows excellent sensitivity in electrospray mass spectrometry. The method was validated over a concentration range of 0.5-500 ng/mL using 45 microL of plasma. The maximum within-run and between-run precision observed in a three-run validation for quality control (QC) samples was 12.5 and 7.6%, respectively. The maximum percentage bias observed at all QC sample concentrations was 11.9%. The method has proven to be robust and compatible with high-throughput bioanalysis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0951-4198
pubmed:author
pubmed:copyrightInfo
Copyright 2005 John Wiley & Sons, Ltd.
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
759-66
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Trapping 4-fluorobenzyl chloride in human plasma with chemical derivatization followed by quantitative bioanalysis using high-performance liquid chromatography/tandem mass spectrometry.
pubmed:affiliation
Worldwide Bioanalysis, Drug Metabolism and Pharmacokinetics, GlaxoSmithKline Pharm, 709 Swedeland Rd., King of Prussia, PA 19406, USA. eric.y.yang@gsk.com
pubmed:publicationType
Journal Article, Evaluation Studies, Validation Studies