Amperometric method for measuring acidity
US5015957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Jul 5, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/49
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An amperometric method for the direct measurement of acidity in a medium which contains at least one ester of an acid containing oxygen, and whose dielectric constant is lower than 30. The method provides for maintaining a constant voltage between an ultramicroelectrode and a counterelectrode and measuring the current therebetween as an increasing quantity of diphenylphosphoric acid is added to the medium via a microburette. The measured current being indicative of the acidity of the medium under test. A predetermined curve is provided which represents the relationship between the acidity of the medium and the current measured by the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.