204 / | HD | CHEMISTRY: ELECTRICAL AND WAVE ENERGY |
193 | DF | APPARATUS {5} |
600 | DF | .~ Electrophoretic or electro-osmotic apparatus {11} |
606 | DF | .~.~ Gel electrophoresis type {7} |
613 | .~.~.~ With means for posttreatment of gel to purify or recover a desired component {1} | |
614 | DF | .~.~.~.~> Blotter (e.g., membrane, etc.) |