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Carboxyl
Type ID: 7 (pKa ~5) 4%
solids
This product line consists of carboxyl charge-stabilized hydrophobic
polystyrene microspheres. Only carboxyl groups are present on
the particle surface. The particles are the carboxyl analog
of the sulfate latexes. The pKa of the carboxyl group is relatively
high, and consequently these particles are not suitable for
work in acidic media. IDC carboxyl latexes are available in
a range of sizes and surface charge densities (70 Ų
per charge group down to 3000 Ų per charge group).
They may be used either for physical adsorption of antigens
or antibodies, or for covalent coupling of components to the
particle surface.
See Protocol
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