Fig. 8
From: A new concept for the production of 11C-labelled radiotracers
General setup for radiotracer synthesis. Left to right: Gas inlet check valve for the 11C-precursor. T-Adapter with reaction vessel (loop or reactor). Check valve A and T-adapter for SPE cleaning. Separation valve with CVB and CVC for product isolation. Valve configuration: Reaction (all CVs closed), wash (CVC closed) and extraction (CVB closed). Opening and closing of the valves is controlled by gas pressure (here helium marked red)