▎ 摘　　要

NOVELTY - Graphene field-effect transistor comprises (i) preparing the graphene field-effect transistor liquid reaction groove, (ii) functionalizing graphene in graphene field-effect transistor by functional solution and anchoring specific designed report probe, (iii) extracting the ribonucleic acid (RNA) to be detected and nucleic acid cutting system for mixing and incubating to obtain the mixed solution, (iv) adding the mixed solution into the liquid reaction tank in the graphene field-effect transistor react, and (v) washing the liquid reaction tank and analyzing the transfer of characteristics graphite alkene field-effect transistor reading the detection signal. USE - The graphene field-effect transistor is used for detecting the novel coronavirus RNA (claimed). ADVANTAGE - The method has high breakthrough degree and the device is simple preparation and low cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for: use of graphene field-effect transistor to detecting RNA.