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Titolo:
Macromolecular surfactant as a pseudo-stationary phase in micellar electrokinetic capillary chromatography
Autore:
Fujimoto, C; Fujise, Y; Kawaguchi, S;
Indirizzi:
Hamamatsu Univ, Sch Med, Dept Chem, Hamamatsu, Shizuoka 4313192, Japan Hamamatsu Univ Hamamatsu Shizuoka Japan 4313192 , Shizuoka 4313192, Japan Toyohashi Univ Technol, Sch Mat Sci, Toyohashi, Aichi 4418580, Japan Toyohashi Univ Technol Toyohashi Aichi Japan 4418580 Aichi 4418580, Japan
Titolo Testata:
JOURNAL OF CHROMATOGRAPHY A
fascicolo: 1-2, volume: 871, anno: 2000,
pagine: 415 - 425
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPEN-TUBULAR CAPILLARIES; PSEUDOSTATIONARY PHASE; SEPARATIONS; POLYMER;
Keywords:
pseudo-stationary phases; surfactants; polynuclear aromatic hydrocarbons; poly(sodium 11-acrylamidoundecanoate); benzenes; naphthalenes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Fujimoto, C Hamamatsu Univ, Sch Med, Dept Chem, Hamamatsu, Shizuoka 4313192, Japan Hamamatsu Univ Hamamatsu Shizuoka Japan 4313192 313192, Japan
Citazione:
C. Fujimoto et al., "Macromolecular surfactant as a pseudo-stationary phase in micellar electrokinetic capillary chromatography", J CHROMAT A, 871(1-2), 2000, pp. 415-425

Abstract

We examined polymers of sodium 11-acrylamidoundecanoate [poly(Na 11-AAU)] with a very high molecular mass (>10(6)) for their potential use as a pseudo-stationary phase in micellar electrokinetic capillary chromatography (MEKC). Size-exclusion chromatography and capillary electrophoresis studies reveal that the polymers are highly charged, and have a densely packed chain structure. For aromatic compounds, the polymeric surfactant showed significantly different selectivity than sodium dodecyl sulfate (SDS). It was suggested that one molecule of poly(Na 11-AAU) forms one micelle. The structural stability of this pseudo-stationary phase permitted its use with relativelyhigh percentages of organic modifiers in the buffer medium, allowing the separation of highly hydrophobic compounds which are difficult to analyze byconventional MEKC with SDS. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 02/12/20 alle ore 18:30:19