Linked Life Data

11453029

Source:http://linkedlifedata.com/resource/pubmed/id/11453029

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2001-7-16
pubmed:abstractText
This paper describes an electrostatic ion chromatographic system in which the separation selectivity for inorganic anions, especially for sulfate and phosphate, could be manipulated by altering the molar ratio of the zwitterionic and cationic surfactants in the column coating solution used to prepare the stationary phase. The zwitterionic surfactant used for this study was 3-(N,N-dimethyltetradecylammonio)propanesulfonate (Zwittergent-3-14) and the cationic surfactant was tetradecyltrimethylammonium (TTA). Using a reversed-phase C18 column (250x4.6 mm I.D.) coated with 10/10 (mM/mM) of TTA/Zwittergent-3-14 mixed micelles as the stationary phase and either NaHCO3 or Na2CO3 aqueous solution as the eluent, together with suppressed conductivity detection, baseline separation of seven model inorganic anions was obtained. The elution order for those anions was found to be F+ < HPO4(2-) < Cl- < SO4(2-) < NO2- < Br- < NO3-. Under the same conditions but using 1/10 (mM/mM) of TTA/Zwittergent-3-14 mixed micelles as the column coating solution, the elution order for these model ions was F- < HPO4(2-) < SO4(2-) < Cl- < NO2- < Br- < NO3-. The early elution of phosphate and sulfate is a unique attribute of this system. Detection limits for F-, HPO4(2-), Cl-, SO4(2-), NO2-, Br- and NO3- (S/N=3, sample injection volume 100 microl) were 0.11, 0.12, 0.12, 0.18, 0.49, 0.49, 0.52 microM, respectively.
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
22
pubmed:volume
920
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
95-100
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Manipulation of separation selectivity of inorganic anions in electrostatic ion chromatography by the use of mixed cationic-zwitterionic micelles as the column coating solution.
pubmed:affiliation
Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Japan. hu@ees.hokudai.ac.jp
pubmed:publicationType
Journal Article