Jordi Resolve Anion columns apply to the separation of charged polymers without the need for high salt concentrations. These columns are an excellent choice for light scattering analyses, where high salt concentrations compromise system performance. Jordi Resolve Anion columns have a negatively charged surface for the separation of anionic polymers, such as poly(styrene sulfonate). Typical solvents for this phase include aqueous/organic mixtures, such as water/methanol.