| 摘要 |
PROBLEM TO BE SOLVED: To provide a reaction vessel capable of making a liquid sample minute, and to provide an analytical apparatus capable of being made compact. SOLUTION: The analyzing apparatus and the reaction vessel which has a sidewall and a bottom wall, to which the liquid sample including a specimen and a reagent is dispensed, and which holds a reaction liquid resulting from the reaction of the liquid sample, are provided. In the reaction vessel 15, the horizontal cross-sectional area of the upper section of the side wall is made larger than that of the lower section of the sidewall in order to be made stackable, and a portion or the whole of the bottom wall is made of a metal thin film 15b. The analyzing apparatus comprises a constant-temperature bath 9 for immersing the metal thin film of the reaction vessel in a transparent constant-temperature liquid Lt and for keeping the liquid sample at a prescribed temperature; a light source 6a for irradiating the metal thin film with light through the constant-temperature bath, at an incidence angle not smaller than the critical angle; a light-receiving element 6d for receiving light reflected by the metal thin film; and a control section which calculates a refractive index of the reaction liquid, by using a resonance angle of surface plasmon resonance caused by the light impinging on the metal thin film, and obtains the material concentration of the reaction liquid, based on the relation between the refractive index and absorbance of the reaction liquid at the measured resonance angle and the relation between the absorbance and the material concentration of the reaction liquid. COPYRIGHT: (C)2007,JPO&INPIT
|
