▎ 摘　　要

NOVELTY - This utility model claims a graphite alkene filter type micro-pipettor, micro-pipettor main body upper is set with double-layer filtering device, the following set up with micro-porous filtering film layer, upper layer is set with the graphene filter screen. Lower layer micro-porous filtering film filtering device inner wall is set with the micro-hole filter film and mutually matching the annular groove, the outer edge of the micro-hole filter membrane is embedded in the annular groove. Upper layer graphene filter screen device inner wall is equipped with annular concave part, the graphite filter net outer edge is embedded in the annular concave part. By setting a double-layer filter, a first layer uses microporous membrane to remove more or more suspected contamination, the second layer uses graphene filter to further remove fine material, increasing the filtering effect, avoiding pipettes used in the process liquid or gas is sucked down to the micropipette after leading to the next cross-contamination when pipetting.