HPLC Method for Simultaneous Determination of Bisphenol-A-Diglycidyl Ether and Some of Its Reaction Products in Canned Foods Using Photodiode Array Detector

Gradient reversed-phase high-performance liquid chromatography with photodiode array detection was used for separation, detection and quantification of bisphenol-A-diglycidyl ether (BADGE) and some of its reaction products, namely, BADGE center dot HCl center dot H2O, BADGE center dot H2O and BADGE center dot 2HCl in pure form and in canned foods, where canned beans and tuna were used as representatives of aqueous and oilin- water food matrices, respectively. The proposed method had a linear range of 0.01-0.5 mu gg(-1) for BADGE center dot HCl center dot H2O, BADGE center dot H2O, BADGE center dot 2HCl and 0.02-0.7 mu g g(-1) for BADGE in aqueous food matrices. In oil-in-water matrices, the method was proven to be sensitive over a linear range of 0.01-0.5 mu g g(-1) for BADGE center dot HCl center dot H2O, BADGE center dot H2O and 0.02-0.7 mu g g(-1) for BADGE center dot 2HCl and BADGE. The limits of detection and quantification ranged from 0.24 to 1.22 ng g(-1) and 0.73 to 14.07ng g(-1), respectively. Excellent intraday and interday precision (n = 9) were obtained with RSD% of 0.84-2.19% and 1.88-2.52%, respectively. Accuracy was measured at five concentration levels and the recoveries ranged from 96.31% to 98.76% with an acceptable variation of +/- 0.9-2.87. Results suggest that the proposed method could be applied for the routine analysis of the studied compounds in their laboratoryprepared mixtures and in various types of canned foods following the limits and regulations of the European Union.