Linked Life Data

11820277

Source:http://linkedlifedata.com/resource/pubmed/id/11820277

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-1-31
pubmed:abstractText
High-performance capillary electrophoresis with electrochemical detection was employed to analyse active ingredients of Rhododendron dauricum L., an important crude herb frequently used in Chinese medicines. Farrerol, quercetin, syringic acid, vanillic acid, 4-hydroxybenzoic acid, protocatechuic acid are major important active ingredients. Operated in a wall-jet configuration, a 300-microm diameter carbon-disk electrode was used as the working electrode, which exhibits a good response at +950 mV (vs. saturated calomel electrodes) for six analytes. Under the optimum conditions, the analytes were baseline separated within 16 min in a borax buffer (pH 8.7). Notably, excellent linearity was obtained over two orders of magnitude with detection limits (S/N=3) ranged from 9 x 10(-7) to 3.0 x 10(-6) M for all analytes. This method was successfully used in the analysis of Rhododendron dauricum L. with relatively simple extraction procedures, and the assay results were satisfactory.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
11
pubmed:volume
943
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
153-7
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Determination of active ingredients of Rhododendron dauricum L. by capillary electrophoresis with electrochemical detection.
pubmed:affiliation
Department of Chemistry, East China Normal University, Shanghai.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't