| 摘要 |
PURPOSE:To accurately perform immunity examination, by a method wherein lights are introduced into a wave guide so as to be reflected from a region performing antigen-antibody reaction and a region performing no antigen-antibody reaction and the difference between both lights led out therefrom is detected. CONSTITUTION:The title apparatus has a plate shape as a whole and two regions 1, 2 parallel to a light propagating direction are provided on the upper surface of a wave guide 3 having a light introducing part 4 and a light lead-out part 5 formed to the under surface thereof at both end parts. Herein, the region 1 is one wherein an antibody 7 is fixed to the upper surface of the wave guide 3 and, when a solution containing an antigen 8 is contacted with the region 1, antigen-antibody reaction is performed. The region 2 is one formed by fixing the antibody 7 at first and subse quently removing the property (preforming antigen-antibody reaction) of the antibody 7 by the irradiation of ultraviolet rays and has the same property as the region 1 except that no antigen-antibody reaction is performed. Lights having the same intensity are introduced from the light introducing part to be respectively reflected by the regions 1, 2 and guides to a detection part 6 from the light lead-out part 5 and, from the presence and degree of the difference between the intensities of lights reflected by the regions 1, 2, the presence and degree of immunity can be detected. |
