ProPac SCX-10 4X250MM. Separate proteins and their variants using Thermo Scientific™ ProPac™ SCX-10 LC Columns, which provide exceptionally high resolution. Based on stationary phases composed of 10µm nonporous polymeric beads, ProPac columns resolve isoforms that differ by a single charged residue. A thin, hydrophilic layer grafted to the particle core eliminates unwanted secondary interactions. The cation-exchange surface provides pH-based selectivity control and fast mass transfer for high-efficiency separation and moderate capacity.