Thermoelectric cold trap
US6076357A · kind A · utility
16Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Dec 18, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/303
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A compact, portable, thermoelectric cold trap for capturing certain gaseous species for analysis in gas chromatographs is disclosed. The U-shaped heat exchanger and T-shaped cold block for holding the adsorbent tube and heater allow the unit to operate over a temperature range from -45.degree. to 300.degree. C. The thermoelectric cold trap is portable and may be retrofitted to new or existing gas chromatographs. The adsorbent tube and heater are also replaceable. A method of assembling the thermoelectric cold trap and a method of operating the thermoelectric cold trap are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.