𝔖 Bobbio Scriptorium
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Continuous flow automated radioimmunoassay using antibodies attached to red blood cells

✍ Scribed by Stephen J. Luner


Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
387 KB
Volume
65
Category
Article
ISSN
0003-2697

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✦ Synopsis


Continuous-flow automated radioimmunoassays can be performed using antibodies which have been attached to red blood cells with chromic chloride. To separate the antibody-bound labeled antigen from unbound labeled antigen the erythrocytes are aggregated by Polybrene and separated from the supernatant by decantation. For the determination of serum insulin levels the method was sensitive to within 2 pU/ml when operating at a sampling rate of lO/hr with a total assay time of II/z hr.


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A biotinylated monoclonal antibody ( \(\mathrm{mAb})\) to human IgM (b-anti-IgM) has been attached to human red blood cells (RBC) by two different approaches. The first method is performed with biotinylated RBC (b-RBC) and involves stepwise binding of streptavidin (SA) to bRBC followed by addition a