Linked Life Data

12217042

Source:http://linkedlifedata.com/resource/pubmed/id/12217042

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2002-9-9
pubmed:abstractText
Fluorescence labeling with the marker carbazole-9-carboxylic acid [2-(2-aminooxyethoxy)ethoxy]amide was shown to be a promising approach toward the accurate determination of carbonyls in cellulosic materials. Combined with gel permeation chromatography in DMAc/LiCl with fluorescence/multiple-angle laser light scattering/refractive index detection, the method yields carbonyl profiles relative to the molecular weight of the cellulosic material. The derivatization procedure can be carried out either homogeneously in DMAc/LiCl or advantageously as heterogeneous derivatization in aqueous buffer. The heterogeneous carbonyl group determination, offering shorter reaction times and increased simplicity as compared to the homogeneous approach, was comprehensively validated. The carbonyl content in numerous dissolving pulps of different provenience has been determined, including pulps with carbonyl contents additionally increased by oxidative treatment. The method was also applied to follow bleaching sequences and oxidative treatments of pulps.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1525-7797
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
969-75
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
A novel method for the determination of carbonyl groups in cellulosics by fluorescence labeling. 2. Validation and applications.
pubmed:affiliation
Christian-Doppler-Laboratory, University of Agricultural Sciences Vienna, Muthgasse 18, A-1190 Vienna, Austria.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Validation Studies