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Electrochemical method and system for monitoring hydrogen peroxide concentration in slurries

  • US 20040069625A1
  • Filed: 09/27/2002
  • Published: 04/15/2004
  • Est. Priority Date: 09/27/2002
  • Status: Active Grant
First Claim
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1. An electrochemical monitoring system comprising:

  • an electrochemical cell fluidly coupled to receive a slurry including hydrogen peroxide, the cell including at least a working electrode comprising tungsten, and a counter electrode; and

    a potentiostat electrically coupled to the working electrode to supply a desired potential to that electrode and measure current flow between the working electrode and the counter electrode, with the amount of passive current therebetween over a selected time window being indicative of the concentration of H2O2 in said slurry.

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