▎ 摘　　要

NOVELTY - A polymolybdophosphoric acid-nitrogen heterocyclic salt-modified electrode comprises a base electrode, a mixture (m1) of polymolybdophosphoric acid-nitrogen heterocyclic salt supramolecular compound and graphene oxide, and polypyrrole, in order. USE - Polymolybdophosphoric acid-nitrogen heterocyclic salt-modified electrode is used for detecting content of hydrogen peroxide (claimed). ADVANTAGE - The polymolybdophosphoric acid-nitrogen heterocyclic salt-modified electrode has improved electron transfer rate, and enables detection of hydrogen peroxide with high sensitivity and stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of polymolybdophosphoric acid-nitrogen heterocyclic salt-modified electrode.