Thermoelectrically cooled water trap
Abstract
A water trap system based on a thermoelectric cooling device is employed to remove a major fraction of the water from air samples, prior to analysis of these samples for chemical composition, by a variety of analytical techniques where water vapor interferes with the measurement process. These analytical techniques include infrared spectroscopy, mass spectrometry, ion mobility spectrometry and gas chromatography. The thermoelectric system for trapping water present in air samples can substantially improve detection sensitivity in these analytical techniques when it is necessary to measure trace analytes with concentrations in the ppm (parts per million) or ppb (parts per billion) partial pressure range. The thermoelectric trap design is compact and amenable to use in a portable gas monitoring instrumentation.
- Inventors:
- Issue Date:
- Research Org.:
- US Department of Energy (USDOE), Washington DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 908595
- Patent Number(s):
- 7000490
- Application Number:
- 10/383,624
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- FG02-96ER82258
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2003 Mar 10
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Micheels, Ronald H. Thermoelectrically cooled water trap. United States: N. p., 2006.
Web.
Micheels, Ronald H. Thermoelectrically cooled water trap. United States.
Micheels, Ronald H. Tue .
"Thermoelectrically cooled water trap". United States. https://www.osti.gov/servlets/purl/908595.
@article{osti_908595,
title = {Thermoelectrically cooled water trap},
author = {Micheels, Ronald H.},
abstractNote = {A water trap system based on a thermoelectric cooling device is employed to remove a major fraction of the water from air samples, prior to analysis of these samples for chemical composition, by a variety of analytical techniques where water vapor interferes with the measurement process. These analytical techniques include infrared spectroscopy, mass spectrometry, ion mobility spectrometry and gas chromatography. The thermoelectric system for trapping water present in air samples can substantially improve detection sensitivity in these analytical techniques when it is necessary to measure trace analytes with concentrations in the ppm (parts per million) or ppb (parts per billion) partial pressure range. The thermoelectric trap design is compact and amenable to use in a portable gas monitoring instrumentation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {2}
}