The cutting frame is suitable for capillary tubes on capillary electrophoresis apparatuses

The utility model discloses a cutting frame suitable for a capillary tube on a capillary electrophoresis apparatus, which comprises a cutting frame body, a plurality of cutting blades and a driving device, the scale marks are arranged at intervals in the length direction of the groove, the scale marks comprise positioning marks and length marks, and the positioning marks correspond to the detection windows in the capillary tube. The cutting frame can ensure that the length of the capillary tube cut each time is stable, so that stable and effective running current is provided, the result reproducibility of the capillary tube cut each time is improved, and the accuracy of a detection result is further ensured. 本实用新型公开了一种适用于毛细管电泳仪上毛细管的切割架，包括：切割架本体，所述切割架本体上设有凹槽；刻度标记，所述刻度标记沿所述凹槽的长度方向间隔布置，并且所述刻度标记包括定位标记和长度标记，所述定位标记与毛细管上的检测窗口对应。该切割架可以保证每次切割得到的毛细管长度稳定，从而提供稳定有效的运行电流，提高毛细管每次切割批间的结果重现性，进而保证检测结果准确性。