Linked Life Data

17644105

Source:http://linkedlifedata.com/resource/pubmed/id/17644105

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2007-8-27
pubmed:abstractText
In this study, an on-line concentration method which coupled cation-selective exhaustive injection (CSEI) sweeping technology with microemulsion electrokinetic chromatography (MEEKC) was used to detect and analyze several tobacco alkaloids (nornicotine, anabasine, anatabine, nicotine, myosmine and cotinine) that are commonly found in various tobacco products. First, the effects of microemulsion compositions (oil, cosurfactant and solution pH) were examined in order to optimize the alkaloid separations in conventional MEEKC. The pH value and the injection length of basic plug were found to be the predominant influences on the alkaloid stacking. This optimal CSEI sweeping MEEKC method provided approximately 180- to 540-fold increase in detection sensitivity in terms of peak height without any loss in separation efficiency when compared to normal MEEKC separation. Furthermore, this proposed CSEI sweeping MEEKC method was applied successfully for the detection of the minor alkaloids nornicotine, anabasine and anatabine in tobacco products.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
1164
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
313-9
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Analyses of tobacco alkaloids by cation-selective exhaustive injection sweeping microemulsion electrokinetic chromatography.
pubmed:affiliation
R&D Center for Membrane Technology, Department of Chemistry and Center for Nanotechnology, Chung Yuan Christian University, Chung-Li, Taiwan. hyhuang@cycu.edu.tw
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't