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Carboxyl magnetic beads:
Carboxyl magnetic beads are coupled to capture antibodies through a one-step or two-step method under the activation of EDC and NHS.
Amino magnetic beads:
Amino magnetic beads are coupled to capture antibodies in a chemiluminescent system under activation with glutaraldehyde or cyanoborohydride.
Tosyl magnetic beads:
Tosyl magnetic beads can be directly coupled to capture antibodies in a boric acid and ammonium sulfate buffer.
SA-coupled magnetic beads:
In order to shorten the product development cycle, in vitro diagnostic companies often choose SA-coupled magnetic beads, which are relatively simple to operate. However, the cost of SA-coupled magnetic beads is high, which is not conducive to companies reducing costs and coping with cost pressures brought about by national centralized procurement and other policies. SA-coupled magnetic beads bind to biotin-labeled capture antibodies through affinity binding.
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