Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-3-31
pubmed:abstractText
A new method for the quantitation of lipoic acid in plasma and tissues based on the selective precolumn derivatization of thiols with the fluorescent label monobromobimane is described. After extraction with diethyl ether, the dithiolane ring of lipoic acid is opened by reduction with NaBH4 before the free thiols can react with the label. Separation and quantitation was achieved by reversed-phase HPLC and fluorescence detection. The concentration-response curve was linear from 20 to 3000 nM in plasma. The recovery as determined with [3H]lipoic acid was 60.9% from plasma and 61.4% from rat heart tissue. The pretreatment of samples with N-ethylmaleimide makes it possible to differentiate between reduced and oxidized forms of lipoic acid.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1387-2273
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
705
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
127-31
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Determination of lipoic acid by precolumn derivatization with monobromobimane and reversed-phase high-performance liquid chromatography.
pubmed:affiliation
Department of Neonatology, Hospital for Pediatrics, University Hospital Charité, Humboldt University at Berlin, Germany.
pubmed:publicationType
Journal Article