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Titolo:
DESCRIPTION OF THE RETENTION BEHAVIOR IN MICELLAR LIQUID-CHROMATOGRAPHY AS A FUNCTION OF PH, SURFACTANT AND MODIFIER CONCENTRATION
Autore:
TORRESLAPASIO JR; BAEZABAEZA JJ; GARCIAALVAREZCOQUE MC;
Indirizzi:
UNIV VALENCIA,FAC QUIM,DEPT QUIM ANALIT E-46100 BURJASSOT VALENCIA SPAIN UNIV VALENCIA,FAC QUIM,DEPT QUIM ANALIT E-46100 BURJASSOT VALENCIA SPAIN
Titolo Testata:
Journal of chromatography
fascicolo: 2, volume: 769, anno: 1997,
pagine: 155 - 168
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIRECT SERUM INJECTION; MOBILE PHASES; OPTIMIZATION; CONSTANTS;
Keywords:
RETENTION BEHAVIOR; SURFACTANTS; MODIFIERS; MOBILE PHASE COMPOSITION; MICELLES; SODIUM DODECYL SULFATE; PROPANOL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
J.R. Torreslapasio et al., "DESCRIPTION OF THE RETENTION BEHAVIOR IN MICELLAR LIQUID-CHROMATOGRAPHY AS A FUNCTION OF PH, SURFACTANT AND MODIFIER CONCENTRATION", Journal of chromatography, 769(2), 1997, pp. 155-168

Abstract

Micellar liquid chromatography permits the elution of solutes of diverse polarity. One of the most outstanding advantages of the technique is its capability of predicting the retention with high accuracy, as afunction of different experimental variables. The separation of a group of compounds is usually optimized by varying the concentrations of surfactant and modifier in the mobile phase. The pH is, however, for many solutes, a variable that should be considered in the description of their elution behaviour. A global model that takes into account, simultaneously, the concentrations of surfactant and modifier, and the pHas chromatographic variables, is proposed for ionizable solutes. The mean relative errors obtained in the prediction of the retention of seven compounds eluted with 81 mobile phases of sodium dodecyl sulphate (SDS) and 1-propanol, using equations fitted with the experimental data measured in 9 to 12 mobile phases was, usually, lower than 6%. The ranges of the variables considered were 0.05-0.15 M SDS, 0-0.08 (v/v) 1-propanol and pH 3-7.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 18:21:19