Method for determination of peracids
AssigneeProMinent Dosiertechnik GmbH
InventorAlexander Pinkowski
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Abstract
A method is described for definition of peracids in the presence of hydrogen-peroxide in a solution with the following steps: (1) introducing an electrode-design, which provides at least one measurement electrode and one counter electrode into the solution, (2) Loading of the electrodes with varying potentials; and (3) Measurement of the current by using a measurement electrode. With such a method the peracid solutions always contain hydrogen-peroxide, which also shows similar reactions. In order to determine the peracid concentration, a value of the determined current is compared with a corresponding value of an earlier recorded electrode-design.
Claims26
A method for the determination of a peracid in a solution in the presence of hydrogen-peroxide comprising the following steps:
- a. introducing at least two electrodes, including a measurement electrode and a counter electrode, into the solution;
- b. varying a potential difference between the measurement electrode and the counter electrode if no separate reference electrode is also employed, or between the measurement electrode and a reference electrode if a separate reference electrode is also employed;
- and
- c. measuring a current using said measurement electrode at a potential difference that is selected in a double layer range, and determining the concentration of the peracid by comparison of the measured current with a calibrated value.
Dependencies are inferred from the claim text.