title: High-resolution preparative isoelectric focusing.
mesh_terms: D005782:Gels; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D007525:Isoelectric Focusing / Q000379:methods*; D011506:Proteins / Q000302:isolation & purification*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D005782:Gels; D007202:Indicators and Reagents; D011506:Proteins