rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
2007-2-16
|
pubmed:abstractText |
Particle-loaded monoliths containing a polymethacrylamide backbone were prepared by suspending a silica-based chiral phase in the mixture of the monomers followed by in-situ polymerization in the capillary. As chiral selector l-4-hydroxyproline chemically bonded to 3 microm silica particles was used following the separation principle of ligand-exchange. Electrolytes containing Cu(II) ions were used. Amino acid enantiomers were separated by capillary-LC and CEC, whereby the latter showed the better resolution properties. For the chiral separation of alpha-hydroxy acids the EOF was reversed by copolymerizing diallyldimethylammonium chloride instead of vinylsulfonic acid as charge providing agent. Short columns of 6 cm were found to be sufficient in the case of CEC for baseline separations of amino acids with alpha values up to 5.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Feb
|
pubmed:issn |
0165-022X
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
23
|
pubmed:volume |
70
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
77-85
|
pubmed:meshHeading |
pubmed-meshheading:16978701-Acrylamides,
pubmed-meshheading:16978701-Capillary Electrochromatography,
pubmed-meshheading:16978701-Chromatography, Liquid,
pubmed-meshheading:16978701-Ligands,
pubmed-meshheading:16978701-Mandelic Acids,
pubmed-meshheading:16978701-Microscopy, Electron, Scanning,
pubmed-meshheading:16978701-Phenylalanine,
pubmed-meshheading:16978701-Polymers,
pubmed-meshheading:16978701-Stereoisomerism,
pubmed-meshheading:16978701-Tryptophan,
pubmed-meshheading:16978701-Tyrosine
|
pubmed:year |
2007
|
pubmed:articleTitle |
Enantioseparation by ligand-exchange using particle-loaded monoliths: capillary-LC versus capillary electrochromatography.
|
pubmed:affiliation |
Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, Karl-Franzens-University, Universitätsplatz 1, A-8010 Graz, Austria. martin.schmid@uni-graz.at
|
pubmed:publicationType |
Journal Article,
Comparative Study
|