1, the principle is different: novel coronavirus detection latex method is non-selective physical electrostatic adsorption, antibody is difficult to bind to latex surface, and the manufacturing process is time-consuming. Colloidal gold method has negative hydrophobic colloidal solution and electrostatic effect.
2. Different carriers: novel coronavirus test latex method is to observe the test results through the combination of ordinary polystyrene latex and antibody, while colloidal gold method is a particle polymerized by chloroauric acid under the action of various reducing agents.