| 摘要 |
PROBLEM TO BE SOLVED: To provide an immunoassay instrument capable of surely indicating the end of a reaction for a long time. SOLUTION: The immunoassay instrument 10 is used for an immunochromatography in which a liquid sample is absorbed and developed, and after a specimen in the sample is labeled, the labeled specimen is captured and determination is indicated. A reaction end indicating part 15 is connected to a determination indicating part 14. The reaction end indicating part 15 is formed by impregnating a chromatograph material made of nitrocellulose fiber with an indicator such as eosin B, phloxine B, bromophenol blue, or the like dissolved in an acid containing alcohol solution.
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