Linked Life Data

12186390

Source:http://linkedlifedata.com/resource/pubmed/id/12186390

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-8-20
pubmed:abstractText
We prepared different photopolymerized sol-gel (PSG) columns by varying the amount of monomer (methacryloxypropyltrimethoxysilane), porogen (toluene) and catalyst (hydrochloric acid) in the reaction solution containing a photoinitiator (Irgacure 1800). The effects of these variations on the chromatographic behavior of the PSG columns were studied. All of the columns studied exhibited reversed-phase character. The concentration of hydrochloric acid was important for the rigidity of the columns, although it did not affect the separation property. The ratio of monomer solution to porogen was a critical factor in controlling the through-pore size and the surface area of PSG, which were found to significantly affect the separation properties, such as permeability, theoretical plate number, retention time, and separation efficiency, of a mixture of test analytes-thiourea, benzene, and naphthalene. There was no change in the retention order for the test analytes. Short separation times were achieved on PSG columns made from a 10% monomer stock solution and 90% porogen with 1 M hydrochloric acid. Mixtures of polycyclic aromatic hydrocarbons and alkylbenzenes were separated with theoretical plate numbers greater than 100 000 plates/m.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
961
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
45-51
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Effect of preparatory conditions on the performance of photopolymerized sol-gel monoliths for capillary electrochromatography.
pubmed:affiliation
Department of Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, Japan. daikato@u-shizuoka-ken.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't