In a jig for connecting an ionization probe used to connect an outlet-side flow path of a column 113 and an inlet-side flow path of an ionization probe 211 in a liquid chromatograph, provided are: a first element fixture 10 fixed to a first element 113, which is the column 113 or the ionization probe 211, a second element fixture 20 fixed to a second element 211, which is the other of the column 113 or the ionization probe 211, and a movement regulation tool 30 that allows the first element fixture 10 to move forward in the axial direction of the first element 113 and regulates the second element fixture 20 so that the second element fixture 20 does not retract beyond a predetermined position in the axial direction of the second element 211 while regulating the first element 113 or the first element fixture 10 and the second element 211 or the second element fixture 20 so that the flow paths of the first element 113 and the second element 211 align.
展开▼
