Use of high-pressure liquid chromatography for quantitative structure-activity relationship studies of sulfonamides and barbiturates.

Retention volumes for a group of sulfonamides obtained on three different HPLC columns were correlated with log P, pKa, and biological activity. Depending on the chromatographic system, good correlations can be obtained with log P or with biological activity, but not necessarily both, using the same chromatographic data.