Abstract
The correlation between the logarithm of the capacity factors (log k′) and the logarithm of the octanol-water partition coefficients (log Pow) for a group of 20 organic compounds (ten benzene derivatives and ten polycyclic aromatic hydrocarbons) was studied in micellar electrokinetic chromatography. Sodium dodecyl sulphate micelles in different aqueous and hydro-organic (n-propanol and n-butanol) buffers were used as electrolyte solutions. A linear relationship between log k′ and log Pow was found. This correlation improved when the percentage of alcohol in the buffer system was increased and when the polarity of the alcohol was decreased.
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