Gas chromatograph/mass spectrometer
US5837883A · kind A · utility
11Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Jun 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/3084
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A shield is disposed between a gas chromatograph unit and a mass spectrometer unit and, further, the space between the gas chromatograph unit and the space the shield and the mass spectrometer unit are ventilated by a ventilating fan or ventilating fans. Thus the change in the temperature of the mass spectrometer unit is suppressed within a small range, so that the accuracy of analysis is enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.