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Construction and Evaluation of Cryogenic Preconcentration System for Analysis of VOC with ppb Level in the Air
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1999, v.12 no.4, pp.332-340
Jeon,
S. J., Kim,
B. J., Kim,
J. S., &
Heo,
G.
S.
(1999). Construction and Evaluation of Cryogenic Preconcentration System for Analysis of VOC with ppb Level in the Air. Analytical Science and Technology, 12(4), 332-340.
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Abstract
Homemade cryogenic preconcentration system is constructed to preconcentrate the VOCs in the ambient air collected in canister. Homemade preconcentrator equipped with GC-MS was used for analysis of air sample containing VOCs at ppb level identified in EPA TO-14 method. The system was evaluated for analytical performance by comparison with the results of adsorption tube method widely used in the past, and shows good agreement for concentrations of benzene, toluene, ethylbenzene, and xylenes.
- keywords
- cryogenic preconcentration, canister, VOC, GC-MS
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