The relation between the solvent strength εab and the active component concentration [DB] in mobile phase in liquid-solid chromatography

Abstract

Based on the stoichiometric displacement model of retention in liquidd chromatog. the solvent strength eab of a binary solvents mixture may be considered as a function of the active component concentration [DB] in mobile phase and the relation is expressed as: eab = eab0 + S log [DB], where eab0 is the standard solvent strength parameter, S is the factor relating to its selectivity; [DB] is the mole concentration of the active component in th solution Data from literatures were used to test the reliability of the relationship. The phys. meanings of eab, eab0, and S are discussed.2

Key words: ALUMINIUM OXIDE, COMPUTER APPLICATIONS, CONCENTRATION, SILICON OXIDE, SOLVENT EFFECT, MOBILE PHASE, GAS-SOLID CHROMATOGRAPHY, LINEAR REGRESSION

CLC Number:

O658

Cite this article

SONG ZHENGHUA. The relation between the solvent strength εab and the active component concentration [DB] in mobile phase in liquid-solid chromatography[J]. Acta Chimica Sinica, 1990, 48(1): 87-91.

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