Materials
* 1 mm diameter (or larger) GC disk electrode
• Ag/AgCl reference electrode
• NANOpureTM deionized water
• Baikalox agglomerate free alumina, 0.05 μm particle size (Baikowski International, Charlotte, NC) or Buehler 0.05 μm alumina
• Fumed Silica 0.007 μm particle size (Sigma, St. Louis, MO)
• Smooth ground glass plate (necessary to prevent scratches during polishing)