×

Coulometric analysis

  • US 5,958,779 A
  • Filed: 06/27/1996
  • Issued: 09/28/1999
  • Est. Priority Date: 11/09/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A coulometric method for determining the quantity of a substance in a solution, wherein a first sample of the solution is introduced into a cavity in which a working electrode is located, a constant potential is applied between the working electrode and a reference electrode in electrical contact with the first sample until such time as the current through the working electrode has decayed to a minimum, the applied constant potential is maintained as the first sample of the solution is replaced by a second sample of the solution in a manner such that the cavity remains filled with solution during the replacement procedure, the applied constant potential is maintained until such time as the current through the working electrode has again decayed to a minimum, and the total amount of the charge passing through the working electrode subsequent to the introduction of the second sample into the cavity as the current through the working electrode again decays to a minimum is determined.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×