| 摘要 |
<p>A reagent for assaying a biologically active substance comprising a combination of (fluorochrome)n- avidin-a compound having a number of reactive groups, or one wherein avidin is bound via biotin to the compound having a number of reactive groups; a method of producing the reagent; an optical fiber made of a resin necessary for utilizing the reagent; an apparatus for assaying provided with a detecting unit utilizing the optical fiber; and a method of assaying the biologically active substance with the use of the above reagent and apparatus. This assaying method can be employed in the immunoassay of trace amounts of biologically active substances contained in blood or a humor for medical diagnosis, such as antigens, antibodies or enzymes, with a remarkably improved sensitivity of detection.</p> |
