▎ 摘　　要

NOVELTY - The utility model claims a graphene purifying device, belonging to the chemical analysis experimental field, comprising sample liquid cavity, an upper sieve, graphene cavity, lower sieve plate, outer, inner screw and filtrate tube. a liquid located in the sample liquor cavity; the upper sieve plate is located at the lower end of sample liquor cavity. outer screw is a hollow structure and connected with the upper sieve plate. the inner screw is located above the graphite cavity, lower sieve plate is located below the graphite cavity. outer screw head with inner screw can be screwed together to make the graphite chamber form a sealed space for accommodating graphite alkene material. filtering pipe located on the lower sieve plate is connected with the graphite cavity. the position of the lower sieve plate can move up and down. The beneficial effect of this utility model is, using graphene as absorption purifying material, purifying device is detachably and can be repeatedly used, convenient operation, saves the experiment cost.