2021-04-06T15:47:19+00:00Electrochemistry has been employed in many EPR kinetic studies to generate free radicals. Wilmad-LabGlass offers complete Electrolytic Cell Assemblies with a Suprasil flat cell. Components of an assembly are also available separately as spare parts. Due to the larger gap (0.5 mm) to accommodate the electrode, WG-810-Q is recommended for Bruker ST cavities only. Please contact us for other designs for SHQE and SHQ cavities. Choose WG-810-J-Q for JEOL cavity. Avoid alkali metal reductions, the associated sample sensitivity to air or moisture and background signals! Never deal with a high vacuum apparatus again! A complete cell includes two Calomel Reference Electrodes, a pair of Platinum Electrodes, and a gas bubbler for deoxygenation. Wilmad provides the Electrolytic Cell Assembly as a complete unit with CFQ or Suprasil® Flat Cell, or you can order components separately. Electrolytic cells are available for the TE102or TE011cavities of all spectrometers.Components: Flat Electrolytic Cells have two Standard Taper 10/30 outer joints, one for the Gas Bubbler and one Platinum Electrode at the top and a single Standard Taper 5/20 outer joint at the bottom for the other Platinum Electrode. The flat section is either CFQ or Suprasil®. The remainder of the Flat Cell is CFQ. You need a minimum of 15mL of sample solution to make contact with the electrodes and gas bubbler. The cell width for JEOL® spectrometers is 10mm outside; product number WG-810-J-A (-Q). For all other spectrometers, the cell width is 10.5mm outside, product number WG-810-A (-Q).The Gas Bubbler Assembly is a three-piece Pyrex® chamber which holds part of your sample. It has three Standard Taper 10/30 outer joints at the top for the Gas Bubbler and two Calomel Electrodes. The lower Standard Taper 10/30 inner joint fits into the top of the Flat Electrolytic Cell. Nitrogen should be bubbled through the solution before and during your experiment to remove paramagnetic oxygen and mix the sample during electrolysis; product numbers WG-810-B-1, WG-810-B-2, WG-810-G.Platinum Electrodes are prepared using 0.016" (0.4mm) diameter wire. The upper electrode, WG-810-C, uses 8" (203mm) of platinum and acts as the working electrode in oxidation reactions. The lower electrode, WG-810-D, has only 2" (50mm) of platinum and acts as the auxiliary electrode in oxidation reactions. If you add a few drops of mercury to the cell, the lower electrode can be used as the working cathode in reduction reactions. Each Platinum Electrode incorporates a Pt-to-W weld. The tungsten (W) external wire lets you quickly clip your potentiostat leads to the electrode.Electrolysis Limits in Water (vs. Saturated Calomel Electrode)
