Wash ion exchange resin with deionized water and store at elevated temperature to remove acidic effluents that cause impurities in bisphenol A.
Treating block copolymer solutions with ion exchange resins reduces metal ion contamination and increases process latitude for self-assembly.
Applying reversed bias voltage to the eluent generator prevents passive ion diffusion and high concentration plug formation, reducing startup time.
Layered condensation polymer stationary phase separates perchlorate and sulfate ions that co-elute on conventional media.
Ion-exchange resin paired with neutral surface microporous membranes removes metal species from organic solvents in a single pass.
Pipette tip columns process unclarified lysates directly, eliminating centrifugation steps and reducing endotoxin contamination.
Iterative capillary isoelectric focusing enriches protein charge variants, resolving inconsistency with icIEF peak profiles.