Gas chromatograph device
US4123236A · kind A · utility
20Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1975 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Feb 28, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/326
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved high resolution chromatograph device operable at column pressures ranging between one and fifty atmospheres absolute measured at the column exit, means for closely regulating the column carrier gas velocity including intermittent stop flow operation, and sample collection chamber means to facilitate contamination free handling and concentration of collected pure sample during spectral or other analysis of eluted samples. Velocity and stop flow control without loss of chromatographic resolution permits matching operation time of chromatograph to that of spectral or other analysis devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.