Linked Life Data

9253249

Source:http://linkedlifedata.com/resource/pubmed/id/9253249

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
1997-9-8
pubmed:abstractText
Two polymeric chiral anionic surfactants [poly(sodium N-undecylenyl-L-valine) (poly-L-SUV) and poly(sodium N-undecylenyl-L-valine-valine) (poly-L-SUVV)] are compared as pseudostationary phases for chiral separations of basic, acidic, and neutral enantiomers. Parameters such as pH, concentration and type of background electrolyte, concentration of polymerized chiral surfactants, and injection size were studied to investigate the migration behavior and optimize the chiral resolution of several racemic analytes. At equivalent monomer concentrations, the migration factors for cationic enantiomers were larger with poly-L-SUV than with poly-L-SUVV. In contrast, the reverse was true for anionic enantiomers. However, in both cases, chiral recognition was significantly enhanced with poly-L-SUVV as compared to that with poly-L-SUV. It is interesting to note that the separation selectivity and resolution of a neutral racemate were slightly better with the latter, but only at the expense of longer analysis time and lower efficiencies.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0003-2700
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2980-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Improved chiral separations using a polymerized dipeptide anionic chiral surfactant in electrokinetic chromatography: separations of basic, acidic, and neutral racemates.
pubmed:affiliation
Department of Chemistry, Louisiana State University, Baton Rouge 70803, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't