ISSN:
1436-5073
Schlagwort(e):
ion-pair chromatography
;
Freundlich isotherm
;
retention equation
;
statistical thermodynamic method
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract In this paper, by combination of the statistical thermodynamic method with the Freundlich isotherm, the retention equations to describe the effects of the mobile phase composition, concentration of the ion-pair reagent and the ionic strength on the amount of adsorbed ion-pair reagent and the retention value of the ionic solute have been reported by simultaneously considering the electrostatic and molecular interaction between solutes, ion-pair reagent and molecule or ion in each phase in the reversed-phase ion-pair chromatography. The validity of these retention equations has been confirmed by calculation of capacity factor of the different phenylamine and naphthylamine sulphonic acids during systematic change of concentration of the strong solvent, the ion-pair reagent and the ionic strength in the mobile phase.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01244287
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