Abstract
By use of single sweep polarography (SSP) in amygdalic acid—ferric (III)—sulfuric acid medium, a very sensitive peak current is observed for H2O2. The peak potential is about ‐0.90 V (vs. SCE). The concentration of H2O2 is linear with peak current in the range of 1.00 x 10‐2 to 6.00x 10‐7 M, the detection limit is 1.00x 10‐7M. The course of the reaction appears to be that hydroxide radical, which forms from H2O2 and ferric (III), reacts with amygdalic acid to give a benzaldehyde product. This polarographically active product can be absorbed strongly at the surface of a mercury electrode to cause a high current.
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