Method and device for determining the organic carbon content of a sample
US4352673A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 24, 1980 |
| Grant date | Oct 5, 1982 |
| Priority date | — |
| Expiry date | Dec 24, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/23
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method of the invention comprises the successive steps of: (a) heating the sample in an inert atmosphere to a first temperature capable of cracking at least a fraction of the organic material contained in the sample; (b) measuring the amount of organic carbon contained in at least a fraction of the effluent resulting from this cracking; (c) heating the sample in an oxidizing atmosphere to a second temperature at most equal to the first temperature; (d) measuring the amount of organic carbon in the effluent produced by the oxidation of the organic material, and (e) deriving from the above measurements the total organic carbon content of the sample. In order to perform the method of the invention, there is also provided means for performing each of the successive steps. In a further refinement, the method also includes steps for determining the mineral carbon content so that the total carbon content of the sample can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.