Patent ID: 7964077

Claim:
A sample separation instrument, comprising: a fixing means comprising; an insulator for storing a second medium which allows a sample separated in a first medium in a first direction to be further separated in a second direction different from said first direction, said insulator comprising a first opening and a second opening each of which defines the second direction in which said second medium is electrified, a first medium supporter which is an insulator having a substantially plate shape, and a means for automatically bringing said first medium, in which said sample has been separated in said first direction, into tight contact with said second opening by moving said first medium in a direction parallel or perpendicular to said fixing means whose sides extend in said first direction and in said second direction, wherein said second opening has a shape which allows said first medium containing the separated sample to be attached to said second medium along said first direction, wherein said first medium is fixed on an end face of said first medium supporter and said means for automatically bringing said first medium into tight contact with said second medium holds said first medium supporter such that said first medium faces downward.