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 impuritie s present in the process streams from the production of bisphenol A. UV spe ctra were taken for standard components. These were evaluated and the detec tion wavelengths of 254, 280 and 305 nm were selected for the chromatograms to be recorded. Concurrent detection at the wavelengths selected of the ch romatograms taken makes it easier to identify the components and considerab ly improves the accuracy of the quantitative analysis. (C) 2000 Elsevier Sc ience B.V. All rights reserved.