Abstract: Provided is a novel sample separating instrument and a novel sample analyzing device each of which can be suitably used for emission transfer. A sample separating instrument (100) for use in emission transfer includes: a separation medium (10); and a holding section (21), the holding section (21) having an opening (21b) on an end part side, the separation medium (10) having an exposed part (10b), the exposed part (10b) having extending parts (10a) which extend on respective edge parts (21a) of the holding section (21) which edge parts are located on respective both sides of the opening (21b).

Abstract: A separation unit is a configuration that is arranged vertically, and thus bubbles generating from the electrode will not negatively influence the contact location between the transfer membrane and separation unit. An anode (32) is arranged at a position separated by a certain distance in the conveying direction (X) of the transfer membrane (1) from the dispensing part (50a) of an electrophoresis gel chip (50). An insulating electrode cover (35) for setting free bubbles generating from the anode (32) is arranged at an upper part of the anode (32).