Comparison of adsorption coefficient (koc) for soils and hplc retention factors of aromatic hydrocarbons using a chemically immobilized humic acid column in rp-hplc

Gy Szab, Robert Bulman

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

The determination of soil adsorption coefficients (Km) via HPLC capacity factors (le) has been studied, including the effect of column type and mobile phase composition on the correlation between log K^c and log k'. Koc values obtained by procedures other than HPLC correlate well with HPLC capacity factors determined on a chemically immobilized humic acid stationary phase, and it is suggested that this phase is a better model for the sorption onto soil or sediment than the octadecyl-, phenyl- and ethylsilica phases. By using log kw a theoretical capacity factor has been obtained by extrapolation of the retention data in a binary solvent system to pure aqueous eluent. There is a better correlation between log kqcand log k'w than the correlation between log Koc and log k.

Original languageEnglish
Pages (from-to)2593-2604
Number of pages12
JournalJournal of Liquid Chromatography
Volume17
Issue number12
DOIs
Publication statusPublished - 1 Jul 1994

Bibliographical note

Funding Information:
Gy. Szab6 was supported by an International Atomic Energy Agency training fellowship which was held at the National Radiological Protection Board. Part of this work was supported by Bio-Separation Co., Budapest, Hungary.

Fingerprint

Dive into the research topics of 'Comparison of adsorption coefficient (ko<sub>c</sub>) for soils and hplc retention factors of aromatic hydrocarbons using a chemically immobilized humic acid column in rp-hplc'. Together they form a unique fingerprint.

Cite this