Patent ID: 7790468
Filing Date: 2010-09-07
Classification: B01L,G01N,Y10T

Abstract:
1. A test object receptacle comprising: a disk-like main body, which is structured to be attached to an external rotary member; a plurality of grooves disposed radially around a central portion in the main body; and a plurality of adsorbent protruding portions provided inside the grooves, each adsorbent protrusion portion having a surface area positioned to contact a test object and structured to adsorb the test object, wherein: in at least some of the grooves, the surface area of the adsorbent protruding portions contained in a unit length of the grooves increases gradually toward a downstream side of the body with respect to a movement direction of the test object; during operation, the grooves are structured so that the test object moves from an upstream side of the body to the downstream side by a centrifugal force created by the external rotary member; a number of the adsorbent protruding portions contained in a unit length of the grooves in at least some of the grooves increases gradually toward the downstream side with respect to the movement direction of the test object; and a first groove of the plurality of grooves has a different shape than a second groove of the plurality of grooves.