Analytical Analytical Separations Media Separations Media 2643 AMBERLITE IR,120 PLUS 120 PLUS SODIUM FORM, ION-EXCHANGE RESIN 9002,23,7 9002237 23,7 900223,7 9002 23 7 NR Gel,type resin with sulfonic acid functionality, 11831 34.90 250 G 11832 48.90 500 G 11833 157.60 2.5 KG