REACTION TUBE, REACTION TUBE ARRAY, AND METHOD FOR CONTROLLING VOLUME OF SAMPLE PARTICIPATING IN REACTION AND APPLICATION THEREOF

A reaction tube, a reaction tube array, and a method for controlling the volume of a sample participating in a reaction and an application thereof. The reaction tube comprises a liquid storage region, a sample transfer region, and a reaction region, wherein the liquid storage region has one end open and the other end communicated with the sample transfer region; the sample transfer region comprises at least one channel; a portion of a first channel in the at least one channel connected to the reaction region has a first inner cross-sectional area; the length of the continuous channel of the first channel having the first inner cross-sectional area is not less than 0.5 mm; the first channel has one end communicated with the liquid storage region and the other end communicated with the reaction region; the reaction region has one end closed and the other end communicated with the first channel; the length of a first region in the reaction region is not less than 2 mm; the first region is a region connected to t