Pulse voltammetry

  • US 4,897,162 A
  • Filed: 02/02/1988
  • Issued: 01/30/1990
  • Est. Priority Date: 11/14/1986
  • Status: Expired due to Fees
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First Claim
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1. A sensing apparatus for sensing chemical compositions comprising:

  • an electrocatalytic sensor having at least sensing and reference electrodes;

    means for applying a first periodic signal to the sensor during a measurement time period;

    means for generating a periodic reactivation signal differing from the first periodic signal by at least one of amplitude, frequency, and waveshape;

    means for applying the periodic reactivation signal to the sensor during a reactivation time period after completion of the measurement time period; and

    sensing means for sensing electrical current flow between the sensing and reference electrodes during the measurement time period.

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