▎ 摘　　要

NOVELTY - Preparation of polymolybdophosphate-nitrogen-containing heterocyclic salt supramolecular compound modified electrode involves pretreating a base electrode, preparing polymolybdophosphate-nitrogen-containing heterocyclic salt supramolecular compound and graphene oxide mixture-modified electrode, and producing polymolybdophosphate-nitrogen-containing heterocyclic salt supramolecular compound-polypyrrole-graphene oxide composite modified electrode. USE - Preparation of polymolybdophosphate-nitrogen-containing heterocyclic salt supramolecular compound modified electrode for determining hydrogen peroxide. ADVANTAGE - The polymolybdophosphate-nitrogen-containing heterocyclic salt supramolecular compound modified electrode having high sensitivity and conductivity can be prepared.