ANCHOR OF Ni2+ ON THE AGMATINE SULFATE-MODIFIED ELECTRODES FOR THE DETERMINATION OF H2O2 IN FOOD

A method was developed to conveniently and rapidly determine hydrogen peroxide (H 2 O 2 ) in food. The glassy carbon electrode (GCE) modified with agmatine sulfate (AS) easily anchoring nickel ion was attached to AS with polyamine structure. As a result, more Ni 2 + was obtained and transformed to Ni(OH) 2 /NiOOH on the AS–GCE, which caused the electrode to own much better electrocatalytic performance on H 2 O 2 . Based on these, the content of H 2 O 2 in thin sheet of bean curd sample was detected with standard addition method, by which good results were obtained.