▎ 摘　　要

NOVELTY - Spatially confined polyaniline-graphene-based/silver nanocomposite, involves using a three-dimensional network reduced graphene oxide as a template, growing polyaniline nanofibers on the surface, wrapping a polyaniline shell on the outer layer to obtain a space confinement material as a carrier, and loading silver nanoparticles to obtain the product. USE - The spatially confined polyaniline-graphene-based/silver nanocomposite is useful in a modified electrode (climed). ADVANTAGE - The nanocomposite material has excellent catalytic performance to dopamine and uric acid, and high sensitivity and detects uric acid and dopamine. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) A method for preparing space-limited the nanocomposite material; (2) A method for preparing modified electrode of the polyaniline-graphene-based/silver nanocomposite material based on space-confined type; and (3) An electrochemical testing method based on the modified electrode of space-confined polyaniline-graphene-based/silver nanocomposite material.