Linked Life Data

16938302

Source:http://linkedlifedata.com/resource/pubmed/id/16938302

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2006-10-23
pubmed:abstractText
Ion-association extraction of some nitrophenolate ions with tetrabutylammonium ion (TBA(+)) into nonionic surfactant micelle has been investigated through the changes in the electrophoretic mobility. Nonionic surfactants of Brij 35 and Brij 58 were used as micelle substrates to which the ion-associates formed could distribute. The electrophoretic mobility of the phenolate ions was measured by capillary zone electrophoresis in the presence of TBA(+) and/or the nonionic surfactant. The electrophoretic mobility of the analyte anions decreased with increasing concentrations of the interacting reagent. Ion association constants (K(ass)) between TBA(+) and the phenolate ions, as well as binding constants of the anions to the nonionic surfactant micelle (K(B)), were determined through the mobility change by applying it to a non-linear least-squares analysis. Binding of the ion-associates was also observed from the aqueous phase to the micelle phase, when both TBA(+) and the nonionic surfactant are present. Binding constants of the ion-associates to the nonionic surfactant micelle (K(B,IA)), as well as micelle extraction constants of the ion-associates (K(ex,m)), were also determined by using the mobility change. The K(ex,m) values obtained were compared with the ion association-solvent extraction constants (K(ex,S)) between water and chloroform.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
1133
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
353-60
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Ion-association extraction of nitrophenolate ions with tetrabutylammonium ion into nonionic surfactant micelle.
pubmed:affiliation
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan. takayana@cc.okayama-u.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't