Immunoassay in centrifugal field with complementary particles of

Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals – Carrier is particulate and the particles are of...

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436517, 436518, 436524, 436531, 436534, 436805, G01N 33557, G01N 33543, G01N 33551, G01N 33546

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active

047216816

ABSTRACT:
Competitive or inhibition assays are disclosed in which sample (e.g., containing target antigen), a reagent containing first particles (e.g., antibody-coated light particles) and a reagent containing second particles (e.g., antigen coated heavy particles) are reacted in a centrifugal field. Differential migration of first particles, of second particles and of first particles linked to second particles leaves a concentration of particles at a locus in solution after a time, which concentration is a function of the analyte concentration in the sample.

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