| 摘要 |
A quantitative transfer pipette, comprising an air bag (1), an air guide tube (2), a liquid storage bag (3) and a quantitative capillary tube (4); the air bag (1), the air guide tube (2) and the liquid storage bag (3) are all made of transparent macromolecular materials and are sequentially connected, and inner holes thereof are in communication; the quantitative capillary tube (4) is made of a transparent macromolecular material or glass; an upper end of the quantitative capillary tube (4) is inserted into an internal portion of the liquid storage bag (3) and is adjacent to the air guide tube (2), and a lower end thereof extends out of the liquid storage bag (3); and the volume of the quantitative capillary tube (4) is selected according to the capacity of liquid required to be absorbed and transferred. |
