Source:http://linkedlifedata.com/resource/pubmed/id/15100482
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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0007332,
umls-concept:C0008559,
umls-concept:C0024868,
umls-concept:C0026385,
umls-concept:C0037813,
umls-concept:C0039315,
umls-concept:C0044438,
umls-concept:C0182400,
umls-concept:C0680844,
umls-concept:C0681916,
umls-concept:C0750572,
umls-concept:C1148476,
umls-concept:C1514721,
umls-concept:C1589268
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pubmed:issue |
1
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pubmed:dateCreated |
2004-4-21
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pubmed:abstractText |
Casein has been pyrolysed to obtain a biochar (28.3% yield), with mostly meso- and macro-pore structure, and a liquid tar product of high yield (37.5%) with the balance as gas (20.9%) and water (13.3%). The elemental composition of the casein tar was: C 66.7%, H 8.3%, N 12.1% and O 12.9% (by difference). The tar sample has been characterised by mass spectrometry, gas chromatography (GC)/MS and heated-probe MS, to give molecular mass distributions for comparison with molecular mass ranges indicated by analytical-scale size-exclusion chromatography (SEC). The tar appeared to be completely soluble in 1-methyl-2-pyrrolidinone (NMP), the solvent used for SEC. It appeared to consist mostly of lower molecular mass fractions with elution times at 18-26 min. GC/MS analysis showed the presence of both aliphatic and aromatic nitrogen-containing components. Neither GC/MS nor heated-probe MS were able to detect more than about half the tar components.
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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 |
1469-0667
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
10
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
101-8
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:15100482-Animals,
pubmed-meshheading:15100482-Caseins,
pubmed-meshheading:15100482-Cattle,
pubmed-meshheading:15100482-Chromatography, Gel,
pubmed-meshheading:15100482-Gas Chromatography-Mass Spectrometry,
pubmed-meshheading:15100482-Hot Temperature,
pubmed-meshheading:15100482-Molecular Weight,
pubmed-meshheading:15100482-Pyrrolidinones,
pubmed-meshheading:15100482-Sensitivity and Specificity,
pubmed-meshheading:15100482-Tars
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pubmed:year |
2004
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pubmed:articleTitle |
Estimation of the molecular mass range of the tar from pyrolysis of casein by gas chromatography-mass spectrometry, probe mass spectrometry and size exclusion chromatography with 1-methyl-2-pyrrolidinone as eluent.
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pubmed:affiliation |
Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar,51, Mongolia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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