Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2005-12-14
pubmed:abstractText
The methods using silica column chromatography, reversed-phase high performance liquid chromatography, liquid chromatography-electrospray ionization mass spectrometry and nuclear magnetic resonance (RP-HPLC/LC-ESI-MS/NMR) for the isolation, purification and identification of geniposidic acid (GPA) in Eucommia ulmoides Oliv. were established. The crude extract of E. ulmoides was obtained after E. ulmoides was extracted with 70% ethanol and the extract was concentrated under reduced pressures. The obtained crude extract dissolved in methanol was injected to a silica gel column and eluted with chloroform-methanol. The eluted fractions were analyzed by RP-HPLC. The eluant from chloroform-methanol (8:1, v/v) was indicated to be a single component by HPLC with a retention time of 5.142 min. The HPLC analysis of the mixture of this fraction with a GPA standard resulted in a single peak. The ultraviolet and infrared spectra of the eluted solution were essentially the same to those of GPA. On the other hand, LC-ESI-MS, 1H- and 13C-NMR experiments also indicated that the fraction was identical to GPA.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1000-8713
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
534-7
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
[Isolation, purification and identification of geniposidic acid in Eucommia ulmoides oliv. by silica column chromatography, reversed-phase high performance liquid chromatography, liquid chromatography-electrospray ionization mass spectrometry and nuclear magnetic resonance].
pubmed:affiliation
Department of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China. newfourtharmy@163.com
pubmed:publicationType
Journal Article, English Abstract