• British Pharmacopoeia Volume V
  • Appendices
  • Appendix I A. General Reagents

Anion Exchange Resin, Strongly Basic

Anion Exchange Resin, Strongly Basic A gel-type resin in hydroxide form containing quaternary ammonium groups [-CH2N+(CH3)3, type 1] attached to a polymer lattice consisting of polystyrene cross-linked with 8% of divinylbenzene.

Brown, transparent beads containing about 50% of water; particle size, 0.2 mm to 1.0 mm; total exchange capacity, at least 1.2 milliequivalents per mL.