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Zeta potential determination as a new way of stationary phases characterization for liquid chromatography
Author(s) -
Buszewski Bogusław,
Bocian Szymon,
Dziubakiewicz Ewelina
Publication year - 2010
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200900466
Subject(s) - zeta potential , chemistry , methanol , stationary phase , chromatography , characterization (materials science) , phase (matter) , analytical chemistry (journal) , organic chemistry , materials science , nanotechnology , nanoparticle
Abstract A set of seven homemade octadecyl silica‐based bonded phases was investigated. Their zeta potential data in methanol and ACN as well as in methanol–water and ACN–water solution were obtained using Zetasizer. The influence of both the coverage density of bonded ligands and the end‐capping of the modified surface on these data was investigated. Presented results may give useful information about the accessibility of the residual silanols in different mobile phases during the chromatographic analysis. Those measurements may be useful to choose chemically bonded stationary phases for CEC. The results also confirm the phenomena of anion exclusion from the pores of stationary‐bonded phase.