Hamilton polymeric PRP™ columns are resin-based, offering excellent resolution due to their high selectivity, efficiency, and capacity. The chemically inert macroporous poly(styrenedivinylbenzene)stationary phase is stable from pH 1 to 13. Compatible with any concentration of organic solvent; can be used up to 60°C and 5000 psi. Hamilton guarantees that the spherical media will not shrink or swell. PRP-1 Reverse Phase Columns contain poly(styrenedivinylbenzene). Large surface area (415 m2/g) allows high capacity and rapid flow rates for fast analysis. Ideal for separating strong acids and bases. Efficiency of 30,000 to 50,000 plates/meter.