Nucleic acid scavenger as well as preparation method and application thereof

The invention relates to the technical field of nucleic acid pollution removal, aims to solve the problems that a nucleic acid scavenger in the prior art corrodes metal and has a certain toxic effect on a human body, and a product for eliminating aerosol nucleic acid molecules does not exist, and discloses a nucleic acid scavenger which comprises a solution A and a solution B, the liquid A comprises the following components in percentage by mass: 3-7.5% of hydrogen peroxide, 5-10% of absolute ethyl alcohol and the balance of water; the pH value of the solution B is 9-12, and the solution B is prepared from the following components: 10 to 100 mmol/L of 4-hydroxyethylpiperazine ethanesulfonic acid, 2 to 10 mmol/L of metal ion salt, 0.001 to 0.002 mass percent of surfactant, alkali and water. The nucleic acid scavenger can remove nucleic acid in a broad-spectrum mode, is high in removal efficiency, does not corrode metal, is harmless to a human body, can be used for removing nucleic acid through a suspension met