High-performance liquid chromatography with multi-wavelength detection of the bisphenol A impurities

A reversed-phase HPLC method was developed for the analysis of 15 impurities present in the process streams from the production of bisphenol A. UV spectra were taken for standard components. These were evaluated and the detection wavelengths of 254, 280 and 305 nm were selected for the chromatograms to be recorded. Concurrent detection at the wavelengths selected of the chromatograms taken makes it easier to identify the components and considerably improves the accuracy of the quantitative analysis.