Fig. 9From: Development and implementation of ISAR, a new synthesis platform for radiopharmaceutical productionFunctionality of chip clamping and on-chip membrane valves. The top plate clamps the chip down against the extended plungers. The plungers press the valve membranes inwards against the valve seats and close therefore the valves are normally closed. In the same clamping motion, the luer connectors are joined together with the connection points on the chipBack to article page