Nucleic acid protein quantitation instrument

The utility model relates to the technical field of biological measurement, in particular to a nucleic acid protein quantometer which comprises a shaft rod rotationally connected between a turning cover and a main body, a movable rod is fixed to the end, away from the turning cover, of the shaft rod, and the movable rod penetrates through the main body and is movably connected with the main body; a limiting assembly used for limiting movement of the movable rod is further arranged in the main body. According to the nucleic acid protein quantometer, the movable rod is driven to move on the main body to drive the shaft rod to move, so that the shaft rod is far away from the turning cover or rotationally connected to the turning cover, when the shaft rod is rotationally connected to the turning cover, the limiting assembly guarantees the stability of the shaft rod, and when the shaft rod is far away from the turning cover, the turning cover can be freely taken down; and the overturned to-be-detected liquid can b