Appeal No. 1997-2387
Application No. 08/082,373
1. An indirect agglutination immunoassay comprising the steps of:
contacting, in a container, a test sample containing a desired analyte
and a reagent comprising sensitized magnetic-material containing particles
containing iron, wherein said sensitized magnetic-material containing
particles have immobilized thereon an antigen or antibody which specifically
binds to said desired analyte,
precipitating said sensitized magnetic-material containing particles
by the application of magnetic force,
allowing said container to stand at an inclination, and
detecting the presence or absence of an immune reaction from the
absence or presence, respectively, of slippage of the precipitated sensitized
magnetic-material containing particles on the bottom of said container.
4. An apparatus for conducting an indirect agglutination immunoassay
comprising:
(a) a container for immunoassay, and sensitized magnetic-
material containing particles having immobilized thereon an
antigen or antibody,
(b) a magnetic sedimentation means for magnetically
precipitating the components containing the magnetic particles
at the bottom of the container, and
(c) an inclination means for allowing the container to stand at an
inclination after removal of the magnetic sedimentation means.
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