Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
ON THE MEASUREMENT OF DEAD-TIME IN MICELLAR LIQUID-CHROMATOGRAPHY
Autore:
TORRESLAPASIO JR; BAEZABAEZA JJ; GARCIAALVAREZCOQUE MC;
Indirizzi:
UNIV VALENCIA,FAC QUIM,DEPT QUIM ANALIT E-46100 BURJASSOT VALENCIA SPAIN
Titolo Testata:
Journal of liquid chromatography & related technologies
fascicolo: 8, volume: 19, anno: 1996,
pagine: 1205 - 1228
SICI:
1082-6076(1996)19:8<1205:OTMODI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIRECT SERUM INJECTION; MOBILE PHASES; BEHAVIOR; CONSTANTS; MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
J.R. Torreslapasio et al., "ON THE MEASUREMENT OF DEAD-TIME IN MICELLAR LIQUID-CHROMATOGRAPHY", Journal of liquid chromatography & related technologies, 19(8), 1996, pp. 1205-1228

Abstract

Modelling of the retention of solutes in micellar liquid chromatography allows the optimization of the resolution of a mixture of solutes and the determination of physico-chemical retention parameters. Both tasks imply the calculation of capacity factors, which are severely affected by the value of dead time. However, the determination of the deadtime is not easy when a micellar mobile phase is used owing to the wide and variable perturbations that appear at the heads of the chromatograms. Four different criteria of determination of a reference time inthe chromatograms are proposed and compared. The criteria are appliedto mobile phases containing a varying concentration of surfactant andmodifier, in order to observe the dependence of the reference time with the mobile phase composition. The study of the influence of the errors in the dead time on the modelling of the retention indicated that an accurate dead time is necessary to calculate retention parameters, but an excellent prediction of retention times can be achieved with a wide range of values of dead time.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 22:42:24