Magnetic attraction transfer process for use in solid phase radioimmunoassays and in other assay methods
First Claim
1. A process, for use in solid phase immunoassays, for simultaneously transferring a plurality of antigen-antibody adsorbent units from one location to another, comprising the steps of providing a plurality of units each comprising a core containing ferromagnetic material, said core covered with at least one coating for preventing chemical interactions between said core and aqueous chemical solutions and for adsorbing antigens or antibodies on the outer surface thereof, placing each of said units in a separate receptacle containing an appropriate liquid and then simultaneously removing said units from said receptacles by magnetic attraction by the use of a transfer device having a plurality of probes of magnetic material which are spatially oriented with respect to the receptacles.
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Accused Products
Abstract
A process and devices for transferring, by magnetic attraction, antigen-antibody adsorbent materials from one reaction mixture to another, and to facilitate an efficient rinsing of these materials, and for transferring adsorbent materials used in other assay methods.
102 Citations
19 Claims
- 1. A process, for use in solid phase immunoassays, for simultaneously transferring a plurality of antigen-antibody adsorbent units from one location to another, comprising the steps of providing a plurality of units each comprising a core containing ferromagnetic material, said core covered with at least one coating for preventing chemical interactions between said core and aqueous chemical solutions and for adsorbing antigens or antibodies on the outer surface thereof, placing each of said units in a separate receptacle containing an appropriate liquid and then simultaneously removing said units from said receptacles by magnetic attraction by the use of a transfer device having a plurality of probes of magnetic material which are spatially oriented with respect to the receptacles.
Specification