▎ 摘　　要

NOVELTY - The electrode has a substrate arranged on a modified graphene electrode surface. The substrate is placed in a pyrrole unit. A Keggin-type heteropoly acid is mixed with a sulfuric acid mix solution. USE - Keggin-type heteropoly acid-poly pyrrolegraphene composite material modified electrode. ADVANTAGE - The electrode has high sensitivity, better stability and high repeatability performance, and is simple to process, easy to get raw material and inexpensive. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a keggin-type heteropoly acid-poly pyrrolegraphene composite material modified electrode manufacturing method. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic view of a keggin-type heteropoly acid-poly pyrrolegraphene composite material modified electrode.