▎ 摘　　要

NOVELTY - The method involves detecting ammonia gas by using a graphene doped polypyrrole sensor as a film sensor, where the graphene doped polypyrrole sensor performs monomer polymerization for limiting the pyrrole to a graphene surface under acidic condition by in-situ polymerization process. USE - Method for detecting ammonia gas by using a graphene-doped polypyrrole sensor. ADVANTAGE - The method enables realizing high sensitivity, better selectivity, high repeatability and strong stability, so as to effectively reduce power consumption rate of the sensor, and improving practice and research value and removing interference of volatile organic matter with better response recovery and repeatability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a method for manufacturing a graphene-doped polypyrrole sensor; and (2) a method for testing and sensing ammonia gas. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view representing relationship between gas responses at room temperature. (Drawing includes non-English language text).