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The development of a volatile organics concentrator for use in monitoring Space Station water qualityA breadboard concept of a volatile organics concentrator (VOC) is manufactured and tested for optimized water-quality analysis in a space environment. The VOC system is attached to a gas chromatograph/mass spectrometer to analyze the volatile chemicals relevant to the operation of Space Station Freedom. The preliminary tests include: (1) comparisons with analyses based on direct on-column injections of standards; (2) analyses of iodinated volatile organics; (3) comparisons of nitrogen vs helium as the chromatography carrier gas; and (4) measurements of collection efficiency. The VOC can analyze EPA method-624 analytes at comparable detection using flame-ionization detection and can analyze volatile iodinated compounds. The breadboard has good reproducibility and can use nitrogen as a carrier gas; good results are noted for the collection and concentration levels and for water removal.
Document ID
19920048712
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bodek, Itamar
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Ehntholt, Daniel J.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Stolki, Thomas J.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Valentine, James R.
(Arthur D. Little, Inc. Cambridge, MA, United States)
Trabanino, Rudy
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Webb, Johanna V.
(McDonnell Douglas Space Systems Co. Huntington Beach, CA, United States)
Sauer, Richard L.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 911435
Meeting Information
Meeting: International Conference on Environmental Systems
Location: San Francisco, CA
Country: United States
Start Date: July 15, 1991
End Date: July 18, 1991
Accession Number
92A31336
Distribution Limits
Public
Copyright
Other

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