Immunological analysis system with evanescent waves.

摘要

An apparatus for testing a sample fluid with a CAPABLE OF RADIATION excite fluorescence of a fluorescent material comprising an elongated substrate REFLECTOR UNIT COMPLETELY INSIDE (24) TRANSMISSIVE RADIATION both excitation and fluorescence. The fluorescent material comprises at least one unit of an antibody-antigen complex comprising a label that will provide the fluorescence when excited by a BE GENERATED BY evanescent wave excitation radiation. The substrate (24) comprises a fiber STRETCHED (36) SOLIDARITY AND LENS (38) FORMED TO GUIDE THE OPTICAL RADIATION INSIDE THE FIBER (36) WITHIN THE LIMITS OF AN ANGLE TO ENSURE REFLECTANCE CRITICO TOTAL INTERNAL. THERE'S A WRAP STRETCHED HOLLOW (40) disposed concentrically around and spaced from the fiber (36) to form an interspace DIMENSIONS CAPILARES. A test instrument (22) supporting the elongated substrate (24) has a reservoir (28) for receiving a sample of a test fluid, and can move selectively POSITION OPERATING IN WHICH MAKES SIGN ON FIBER fluid flow (36) and, by the action CAPILAR, in the interspace between the fiber (36) and sheath (40). The apparatus further comprises a source of excitation radiation (74), one element REFRACTOR (38) to focus the radiation into the lens (38), ELEMENT DETECTOR (78) for detecting radiation florescence emitted from one end of the FIBER (36) IN RESPONSE TO exciting radiation, a frame OPTICO (6) to mount all the components in a fixed ratio relative to the lens (38) for introducing the excitation radiation into the lens (38) INSIDE critical angle.