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. Author manuscript; available in PMC: 2015 Jul 6.
Published in final edited form as: Appl Radiat Isot. 2013 Apr 25;78:113–124. doi: 10.1016/j.apradiso.2013.04.023

Figure 4.

Figure 4

Design and operation of reagent delivery module (RDM). (a) Schematic of fluid path. The actual module has 8 reagent reservoirs but only 4 are shown for clarity. Reagent reservoirs are connected to a common path leading to a single output connection. Due to a small amount of carryover in the fluid path after reagent delivery, care must be taken in selection of reagent positions to mitigate effects of cross-contamination (or multiple RDMs can be used). Remaining panels show operating states: (b) User loads reagents through check-valves into reagent reservoirs during setup prior to synthesis. These reagents are stored in the reservoirs until needed. (c) Reagent #2 is delivered to the common delivery line with nitrogen pressure.