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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1994-3-16
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pubmed:abstractText |
A sensitive HPLC method has been described for quantitation of two cholecystokinin (CCK) peptides in discrete rat brain regions. Separation and quantitation was performed by the reversed-phase HPLC combined with electrochemical detection. Analytical recoveries of the tetrapeptide (CCK-4) and octapeptide-sulphate (CCK-8s) were 96% and 94%, respectively. The between assay coefficient of variation (CV) was less than 3% for both peptides. The within-assay CV was 4% and 6% for CCK-4 and CCK-8s and the detection limit was 2 and 10 pmol/mL, respectively. For identification of structures, the peptides were fractionated by semi-preparative HPLC using a novel SMART system for micropurification. The fractions were analysed by fast atom bombardment mass spectrometry (FAB MS) which confirmed the presence of both CCK-4 and CCK-8s in the rat brain tissue.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0269-3879
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
7
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
251-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8305854-Amino Acid Sequence,
pubmed-meshheading:8305854-Animals,
pubmed-meshheading:8305854-Brain Chemistry,
pubmed-meshheading:8305854-Chromatography, High Pressure Liquid,
pubmed-meshheading:8305854-Electrochemistry,
pubmed-meshheading:8305854-Male,
pubmed-meshheading:8305854-Molecular Sequence Data,
pubmed-meshheading:8305854-Rats,
pubmed-meshheading:8305854-Rats, Wistar,
pubmed-meshheading:8305854-Sincalide,
pubmed-meshheading:8305854-Spectrometry, Mass, Fast Atom Bombardment,
pubmed-meshheading:8305854-Tetragastrin
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pubmed:articleTitle |
Quantitation and identification of two cholecystokinin peptides, CCK-4 and CCK-8s, in rat brain by HPLC and fast atom bombardment mass spectrometry.
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pubmed:affiliation |
Department of Psychiatry, Karolinska Institute, Huddinge, Sweden.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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