Liquid filling device and liquid filling method for capillary using the liquid filling device

摘要

PROBLEM TO BE SOLVED: To prevent a liquid attached to the end of a filling instrument after filling a capillary with the liquid from attaching to the inner wall of the capillary when pulling out the filling instrument from the capillary.SOLUTION: A cladding tube 8 is loaded to the top of an injection tube 2 so as to cover the outer peripheral face of an injection needle 4. The length of the cladding tube 8 is shorter than that of the injection needle 4, and the top of the injection needle 4 protrudes from the cladding tube 8 in such a state that the base end of the tube 8 contacts the holding part 7 of the needle. The cladding tube 8 can independently be slid to the axial direction of the injection needle 4, and the top of the injection needle 4 can be housed in the cladding tube 8 by sliding the tube 8 toward the top side of the needle 4.