title: Historical and theoretical aspects of isoelectric focusing.
mesh_terms: D002021:Buffers; D002621:Chemistry / Q000266:history; D004586:Electrophoresis; D049672:History, 19th Century; D049673:History, 20th Century; D006863:Hydrogen-Ion Concentration; D007525:Isoelectric Focusing; D008433:Mathematics
chemical_list: D002021:Buffers