Rate sensing batch analysis method
US3933593A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1972 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Aug 9, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/904
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A portable, automated chemical analyzer having a polarographic oxygen electrode submerged in a batch of stirred solution. The signal from the electrode is directly differentiated and amplified to produce a signal proportional to the time rate of change of oxygen concentration. The membrane of the polarographic sensor is stretched very tightly over the cathode surface to provide a high signal-to-noise ratio. Methods for analyzing glucose-glucose oxidase, catalase-H.sub.2 O.sub.2 and various other enzyme systems by the polarographic electrode oxygen sensing apparatus include the steps of converting the sensed signal into time rate of change of oxygen concentration and recording the maximum rate of change of oxygen concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.