▎ 摘　　要

NOVELTY - The method involves preparing sample of the graphene device. The graphene device is set on sample Raman spectrum system. The position of graphene device is adjusted to the microscope field, according to the microscope focal distance regulation. The graphene sample surface is scanned using laser beam. The probe table is taken. The transfer characteristic curve of the graphene device is repeatedly measured using semiconductor parameter analyzer. USE - Method for monitoring adsorption of gas molecule from graphene surface. ADVANTAGE - The adsorption of gas molecule from the graphene surface can be monitored effectively and easily. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view representing the monitoring of adsorption of gas molecule from graphene surface.