A compression molded graphite-Teflon electrode is evaluated as a detector for the electrochemical detection of phenolic compounds, separated by reverse-phase high-performance liquid chromatography. Detection limits for these phenolic compounds range from 0.5–1 ng. Repetitive injections yield peak heights with RSDs less than 1%. Passivation of electrode surface by phenols is discussed. In addition, construction of a flow cell to be used in conjunction with graphite-Teflon electrode is also described.