▎ 摘　　要

NOVELTY - The system has a light source (1), a polarizing plate, a half-wave plate, a chopper, a focusing objective lens, a first reflector (6), a right-angle prism (7), a second reflector (8), a diaphragm, a third reflector (9), a linear array charge-coupled device (CCD) (11) and a phase-locked amplifier (12). The first reflecting mirror is set on the emitting light path of the focusing lens. The right-angled prism is set on the reflecting light path of the first reflector. The second reflector is set on the emitting light path of the right-angle prism. The diaphragm is set on the reflecting light path of the second reflector. The third reflector is set on the emitting light path of the diaphragm. The linear array CCD is set on the reflecting light path of the third reflector. The lock phase amplifier is connected with the linear array CCD. The rectangular prism is provided with a gold nano rod/graphene composite sensor structure (14). USE - Graphene biosensor system based on gold nano-rod signal amplification used in biochemical detection technology field for detecting cancer cell and detecting biomolecule specificity. ADVANTAGE - The graphene biosensor system has scientific design, reasonable structure, convenient use, free mark, high sensitivity and is worthy of popularization and use. DESCRIPTION OF DRAWING(S) - The drawing shows a structural connection diagram of the system of the graphene biosensor system based on gold nano-rod signal amplification. (Drawing includes non-English language text). Light source (1) Gold nano-rod (2) Micro-flow channel (3) Chopper (4) Focusing lens (5) First reflector (6) Right-angle prism (7) Second reflector (8) Third reflector (9) Diaphragm (10) Linear array ccd (11) Lock phase amplifier (12) Computer (13) Gold nano rod/graphene composite sensor structure (14) Microfluidic channel (14-3)