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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1999-3-23
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pubmed:abstractText |
An efficient reversed-phase high-performance liquid chromatographic assay with ultraviolet detection at 450 nm for simultaneous determination of lutein and zeaxanthin stereoisomers in bovine retina is described. The procedure involves rapid and careful one-step hexane extraction of the carotenoids from the homogenized liquid and enrichment by on-line solid phase extraction on a polystyrene cartridge. The substances were eluted at a flow rate of 1 ml/min with acetone-water (85:15, v/v) on a C30 reversed-phase column. C30 phases exhibit superior shape selectivity for the separation of carotenoid stereoisomers compared with conventional C18 phases. For comparison a mixture of iodine-isomerized lutein and zeaxanthin standards was separated.
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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:month |
Dec
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pubmed:issn |
1387-2273
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
11
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pubmed:volume |
720
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
211-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9892084-Animals,
pubmed-meshheading:9892084-Cattle,
pubmed-meshheading:9892084-Chromatography, High Pressure Liquid,
pubmed-meshheading:9892084-Lutein,
pubmed-meshheading:9892084-Retina,
pubmed-meshheading:9892084-Stereoisomerism,
pubmed-meshheading:9892084-Xanthophylls,
pubmed-meshheading:9892084-beta Carotene
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pubmed:year |
1998
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pubmed:articleTitle |
Reversed-phase high-performance liquid chromatographic identification of lutein and zeaxanthin stereoisomers in bovine retina using a C30 bonded phase.
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pubmed:affiliation |
University of Tübingen, Institute of Organic Chemistry, Germany.
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pubmed:publicationType |
Journal Article
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