Analysis for nitrogen compounds by gas chromatography
US3966411A · kind A · utility
6Cited by
0References
19Claims
0Family size
Inventors
Key dates
| Filing date | Apr 8, 1975 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | Apr 8, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/173076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The qualitative and quantitative analysis of nitrogen-containing compounds is accomplished by contacting in the presence of an acid a sample containing such a compound with an aromatic hydrocarbon, thereby converting the compound to a stable nitrogen-containing aromatic hydrocarbon. The sample now containing the nitrated aromatic hydrocarbon is then introduced in a carrier gas stream into a chromatographic column. The effluent stream from the column is passed through a gas chromatography detector, and the detector signal response obtained is compared with that produced by known amounts of a reference calibration sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.