Patent ID: 8709346
Filing Date: 2014-04-29
Classification: B01L,G01N,Y10T

Abstract:
1. An analysis device for storing and transferring a sample solution to be analyzed, said device comprising: a fluid storage chamber configured to have the sample solution injected and stored therein; a separation chamber configured to separate the sample solution into a solution component and a solid component by applying a centrifugal force generated by rotation of the analysis device; a holding channel configured to have a capillary force for holding a part of the solution component separated by the separation chamber; a first joint channel that joins the separation chamber and the holding channel, the first joint channel configured to have a capillary force; an air hole disposed on a boundary region between the first joint channel and the holding channel; a measurement cell configured to hold the part of the solution component separated by the separation chamber and transferred from the holding channel, the solution component being transferred by an external force; a sample overflow chamber positioned outwardly of the separation chamber with respect to an axial center of the analysis device when the analysis device is rotated around the axial center; and a second joint channel configured and arranged to collect the sample solution other than the part of the solution component into the sample overflow chamber, the second joint channel configured to have a capillary force, and the second joint channel having a siphon structure with a bend portion which is arranged so as to be positioned inwardly of a solution level of the sample solution stored in the separation chamber with respect to the axial center of the analysis device, wherein the solution level corresponds to a predetermined solution level of the sample solution when held in the separation chamber.