Methods were developed for the gas-chromatographic determination of alkyl acetates in aqueous solutions in the concentration range of 0.01-100 mg/L with the chromatomembrane gas extraction of analytes from a flow of the test liquid. The analytical potentialities of the direct-flow and counterflow techniques of chromatomembrane gas extraction were compared. It was demonstrated that the interfering effect of petroleum products on the results of analysis can be eliminated by using an additional chromatomembrane cell.