Detection of H2O2 in food samples by FTIR

A simple and rapid method to detect hydrogen peroxide was developed. The FT IR peak of hydrogen peroxide was used for this purpose. A peak was observed at 669.18 cm(-1) on NaCl window and another at 418.48 cm(-1) on KBr window . In a reaction mixture of ascorbic acid, riboflavine and citrate buffer in a total of 0.1 M concentration, 10(-4) M hydrogen peroxide could be detect ed which was formed after a visible light illumination of this solution. Th is method enabled the detection of hydrogen peroxide in aqueous solution. S ince no reactant has to be added, the composition would not change after th e measurement. This method can also be applied to food samples having simil ar composition with the above given solution. (C) 1999 Elsevier Science Ltd . All rights reserved.