Determination of Catechol Purity by High Performance Liquid Chromatography

A reversed-phase high performance liquid chromatographic method was used to detect catechol purity. A Kromasil C₁₈ column was used and mobile phase was methanol:0.2% acetic acid=50:50 (V/V). The wavelength 277 nm Was selected. The recoveries were 94.6%～101.8% and the standard deviations were 0.19～0.24.