▎ 摘　　要

NOVELTY - A graphene composite structure comprises one-dimensional zirconia nanoparticles uniformly dispersed in an oxidized graphene surface. USE - Graphene composite structure is used for capturing, enriching and separating phosphopeptide. ADVANTAGE - The graphene composite structure has excellent phosphopeptide enriching, capturing and separating property, and can be manufactured by a simple method under mild conditions with high yield.