Method of injecting a sample into gas chromatograph
US5783742A · kind A · utility
6Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Nov 14, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample is injected into a gas chromatograph by first slowly causing a needle of a syringe containing the sample to penetrate a septum and be inserted into a sample vaporization chamber and then quickly pushing a plunger to inject the sample into the sample vaporization chamber and pulling out the needle out of the sample vaporization chamber such that effects of discrimination can be controlled and the stress on the needle can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.