▎ 摘　　要

NOVELTY - A nano gold-silver-three-dimensional graphene composite material modified electrode comprises base electrode, nano gold-silver-three-dimensional graphene composite material coating, and the substrate electrode is an ionic liquid modified carbon paste electrode. USE - Nano gold-silver-three-dimensional graphene composite material modified electrode for preparing electrochemical sensor device, detecting baicalein, and detecting content of baicalein in Shuanghuanglian oral solution. (all claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a use of nano-gold-silver-three-dimensional graphene composite modified electrode for preparing a electrochemical sensor device.