All items are supplied for in vitro laboratory research use only — not for human or veterinary use, diagnosis or therapy.
Prices are per unit as listed; each catalog number ships with its Certificate of Analysis.
They are individual components used in radioimmunoassays rather than peptides. The group covers assay buffer, normal rabbit serum, goat anti-rabbit second antibody and assay tubes, sold separately for replenishing kits or assembling custom assays.
Why is normal rabbit serum needed?
Primary antibody is present in trace amounts in a competitive assay. Normal rabbit serum supplies additional carrier immunoglobulin so that the second antibody forms a precipitate large enough to separate bound tracer from free tracer reliably.
What does the second antibody do?
The goat anti-rabbit antibody recognises the rabbit primary antibody and precipitates the resulting immune complexes. This provides the bound-versus-free separation step that must occur before the radioactivity in each fraction is counted.
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Products are supplied for laboratory research use only.
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