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Further characterization of sorbents for environmental sampling. Final report Mar 78-Jun 79

Technical Report ·
OSTI ID:5009853
; ;
The report gives results of an ongoing experimental program to evaluate the breakthrough characteristics of sorbent resins for sampling of organic vapors using an elution analysis chromatographic technique. The effects of water vapor and CO2, at levels typical of gaseous effluents from combustion processes, on retention of nonpolar and polar species on two commonly used sorbents (XAD-2 and Tenax-GC) have been studied. Effects on XAd-2 were small but the volumetric capacity of Tenax-GC was substantially decreased. Other sorbents were characterized for potential use in vapor sampling systems: coconut-based charcoal, petroleum-based charcoal, silica gel, Ambersorb XE-340 and Xe-347, and XED-8. Retention volumes for XAD-8 and silica gel were roughly comparable to those of XAD-2 and Tenax-GC; those of the charcoals and the Ambersorbs were 2 to 4 orders of magnitude higher. Recovery of sorbate from charcoals is known to be poor in some cases, however, and recovery from the Ambersorbs is suspect but under investigation.
Research Organization:
Little (Arthur D.), Inc., Cambridge, MA (USA)
OSTI ID:
5009853
Report Number(s):
PB-80-118763
Country of Publication:
United States
Language:
English

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Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION
ADSORBENTS
AIR POLLUTION
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARCOAL
CHROMATOGRAPHY
COMBUSTION PRODUCTS
DESIGN
FLUIDS
GAS CHROMATOGRAPHY
GASES
MANAGEMENT
MATERIALS RECOVERY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PETROCHEMICALS
PETROLEUM PRODUCTS
POLLUTION
POLYMERS
PROCESSING
RECOVERY
RESINS
SAMPLING
SEPARATION PROCESSES
SILICA GEL
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TESTING
VAPORS
WASTE MANAGEMENT
WASTE PROCESSING
WATER VAPOR