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Document ID (ISN)100595
CIS number 02-1760
ISSN - Serial title 1529-8663 - AIHA Journal
Year 2000
Convention or series no.
Author(s) Matney M.L., Beck S.W., Limero T.F., James J.T.
Title Multisorbent tubes for collecting volatile organic compounds in spacecraft air
Bibliographic information Jan.-Feb. 2000, Vol.61, No.1, p.69-75. Illus. 18 ref.
Abstract The objective of this study was to improve the capability of Tenax-TA tubes to trap and concentrate volatile contaminants from air aboard spacecraft by incorporating additional sorbents within the tubes. Two carbon molecular sieve-type sorbents were tested. Breakthrough volumes were determined by flowing low levels of methanol or trichlorofluoromethane in nitrogen through the sorbent tubes at 30mL/min. Breakthrough volumes for methanol on the two sorbents were about 9L/g and 11L/g, while those for trichlorofluoromethane were 7L/g and >26L/g. Tubes containing either Tenax-TA alone or in combination with each sorbent were next exposed to a 10-component gas mixture and percentage recoveries of each constituent were determined. The Tenax-TA and Carboxen 569 combination gave the best overall recoveries (75-114% for the 10 compounds). Acetaldehyde had the lowest recovery (75%), but this value was an improvement over either the other sorbent combinations or the original single-sorbent tubes.
Descriptors (primary) organic compounds; volatile substances; space travel; confined spaces; sorbents
Descriptors (secondary) trichlorofluoromethane; molecular sieve adsorption; methanol; acetaldehyde
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Toxic and dangerous substances
Broad subject area(s) New technologies
Browse category(ies) Space travel
Confined spaces