How to Clean Electrodes

The electrodes in scientific and medical equipment -- such as that used in EEG (electroencephalography) and EMG (electromyography) -- need frequent cleaning and sterilization. Improper technique can damage the sensitive electrodes. Build up of gel and corrosion from bright light can leave the electrodes looking dull or discolored. Refer to the user manuals for removal and installation instructions before starting this project.

Things You'll Need

• Small bucket
• Scrub brush
• Mild detergent
• Distilled water
• Hydrogen peroxide (2 percent)
• Control III (or similar cold sterilization liquid)

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Instructions

• 1

  Pull electrodes free according to the user's manual. They should simply unplug from the face of the main unit.

• 2

  Mix a teaspoon of mild detergent with two cups of warm distilled water. Tap water can contain chemicals that will damage the electrodes.

• 3

  Scrub electrodes with the detergent and water mixture using a small brush. Do not completely immerse the electrodes. Rinse well with clear distilled water and let air dry.

• 4

  Remove any brown stains on the electrodes by swabbing with two percent hydrogen peroxide. The surface has a tendency to turn brown due to exposure to bright light. This is a preferred method to harsh scrubbing or sanding.

• 5

  Coat electrodes with a cold sterilization solution, such as Control III, and let sit for 10 to 15 minutes. Rinse with clear distilled water. Place electrodes back with unit and store in a cool, dry place.