To enable off-line quantification of reaction products dissolved in the WE electrolyte, the electrolyte can be archived upon completion of the electrochemistry. By connecting the electrolyte manifold port to the desired vial, air (or another gas) is pumped into the electrolyte pumping port to push practically all electrolyte from the WE fixture, including its attached tubing, to the vial. In the present work, ca. 15 sccm of air via a peristaltic pump provides near complete removal of the electrolyte from the WE fixture. The volume of electrolyte within the tubing, which remains from the electrolyte filling procedure, is comparable to the volume of the WE chamber, which results in dilution of the reaction products by approximately a factor of 2. When using analytical methods with excellent levels of detection, for example liquid-injection gas chromatography (GC) and high-performance liquid chromatography (HPLC) in the present work (Thermo Trace 1310 and Ultimate 3000), the dilution is inconsequential. The total amount of liquid product in the vial is the lower limit of that synthesized during the electrochemical experiment due to possible loss of product, for example via incomplete electrolyte extraction from the cell, product evaporation during electrochemistry or during electrolyte extraction, and product crossover through the membrane.