Patent ID: 7604776

Claim:
A sample-liquid analysis disc for analyzing a sample solution comprising: a solid reagent; a disc main body; and at least one sample mixing unit provided at said disc main body, wherein said sample mixing unit comprises: a liquid sample reserve unit for reserving a liquid sample; a reagent chamber connected to said liquid sample reserve unit via a first flow path, and formed so that said solid reagent can be disposed in a plural number, and to which said liquid sample is supplied, from said liquid sample reserve unit via said first flow path by centrifugal force caused by at least a spin of said disc main body; a measurement chamber connected to said reagent chamber via a second flow path, and to which a sample solution containing said liquid sample and said solid reagent mixed in said reagent chamber is supplied by centrifugal force caused by the spin of said disc main body and capillarity generated in said second flow path; wherein said reagent chamber is formed so that said solid reagent can be disposed in a plural number, in a direction substantially parallel to a radial direction of said disc in which said centrifugal force is generated, or in a direction substantially perpendicular to said radial direction; said reagent chamber comprises an upper base board, a lower base board, and a spacer interposed between said upper base board and said lower base board; said upper base board has a concave portion to contact a portion of said solid reagent; said spacer has a cutaway portion; and said solid reagent is fixed in a space formed by said cutaway portion and said concave portion.