Effect of Surfactants on Surface Structure in Liquid Chromatography
- 1 January 1987
- journal article
- Published by Oxford University Press (OUP) in Journal of Chromatographic Science
- Vol. 25 (1) , 29-32
- https://doi.org/10.1093/chromsci/25.1.29
Abstract
The chromatographic performance of hydrophobically modified silica (i.e., octyl and octadecyl surfaces) in contact with aqueous mobile phases containing one of four linear alkyl anion surfactants is examined. Log-log plots of k′ vs. concentration of surfactant in the mobile phase shows three distinct trends. Initially, solute retention changes little with increasing amounts of surfactant. However, a dramatic decrease in solute retention occurs prior to micelle formation and may be due to changes in the surface's structure-solvation.Keywords
This publication has 0 references indexed in Scilit: