Patent ID: 11944963
Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 8:
9. The preparation method for the coaxial capillary microfluidic chip according to claim 7, wherein in step (3), the unground ends of the two circular capillaries are first placed in casing tubes and then placed in the back taper joints respectively, the back taper joint of one circular capillary is screwed into the hole I, the ground end is placed in the square groove I through the circular groove I, and the back taper joint of the other circular capillary is screwed into the hole II; the sliding platform is pushed to make the ground end of the other circular capillary enter the circular groove II through the sealed tube in the fixing hole I, and finally placed to an appropriate position in the square groove II.