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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-6-2
pubmed:abstractText
The peroxyoxalate chemiluminescence detection of biological thiols combined with high-performance liquid chromatography (HPLC) is described. SH groups of the thiol compounds including glutathione (GSH), cysteine, N-acetylcysteine, cysteamine, and D-penicillamine were labelled with N-[4-(6-dimethylamino-2-benzofuranyl)phenyl]maleimide (DBPM), a specific fluorogenic reagent for SH group. The labelling reaction was carried out at 60 degrees C for 30 min and at pH 8.5 and a sample of the resulting reaction mixture was subjected to HPLC. Five kinds of labelled thiols were separated within 12 min on ODS-80 column (150 x 4.6 mm ID; 5 microns) and detected in the ranges from 500 fmol to 2 pmol/100 microL (cysteamine and N-acetylcysteine), to 3 pmol/100 microL (cysteine) and to 5 pmol/100 microL (GSH and D-penicillamine). The lower detection limits were from 7 fmol (cysteamine) to 113 fmol (GSH) per 100 microL (S/N = 2). The method was applied to the determination of thiols in a rat liver. The amounts of glutathione and cysteine were 1.23 +/- 0.15 mumol/g (n = 5) and 0.15 +/- 0.04 mumol/g (n = 5), respectively.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0269-3879
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
39-42
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
High-performance liquid chromatography/chemiluminescence determination of biological thiols with N-[4-(6-dimethylamino-2-benzofuranyl)phenyl]maleimide.
pubmed:affiliation
Faculty of Pharmaceutical Sciences, Nagasaki University, Japan.
pubmed:publicationType
Journal Article