Record Display for the EPA National Library Catalog
RECORD NUMBER: 113 OF 347Main Title | Effects of Linear Flow Velocity and Residence Time on the Retention of Non-Polar Aqueous Organic Analytes by Cartridges of Tenax-GC. | |||||||||||
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Author | Pankow, James F. ; Isabelle, Lorne M. ; Kristensen, Toni J. ; | |||||||||||
CORP Author | Oregon Graduate Center, Beaverton.;Environmental Monitoring and Support Lab.-Cincinnati, OH. | |||||||||||
Year Published | 1982 | |||||||||||
Report Number | EPA-R-807898; EPA-600/J-82-306; | |||||||||||
Stock Number | PB83-191247 | |||||||||||
Additional Subjects | Organic compounds ; Diffusion ; Environmental surveys ; Water analysis ; Sorbents ; Pesticides ; Naphthalene ; Transport properties ; Chemical analysis ; Water pollution ; Reprints ; Tenax GC resins ; Water pollution detection ; Benzene/dichloro ; Benzene/trichloro ; Butadiene/hexachloro | |||||||||||
Holdings |
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Collation | 15p | |||||||||||
Abstract | Strong evidence has been obtained which indicates that film diffusion controls the retention of non-polar organics of low aqueous solubility by the sorbent Tenax-GC. Model compounds which have been studied in this context include the four U.S. Environmental Protection Agency priority pollutants 0-dichlorobenzene, 1,2,4-trichlorobenzene, naphthalene, and hexachloro-1,3-butadiene. The data indicate that compounds such as these have large aqueous retention volumes on this sorbent. Once sorbed, little loss occurs for micrograms/l concentrations and sample volumes of several liters. Equations are developed which predict the percent recovery as a function of cartridge dimensions and sample volume flow rate. (Copyright (c) 1982 Elsevier Scientific Publishing Company). |