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자료유형
학술저널
저자정보
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제22권 제5호
발행연도
2006.10
수록면
712 - 718 (7page)

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In order to investigate the analytical uncertainties associated with sampling and analysis of major greenhouse gaseous pollutants (carbon dioxide and methane), we attempted to quantify their adsorptive loss due to the contact with the container wall (such as Tedlar bag and vial). Using the GC/FID method, some basic experimental parameters (such as reproducibility and method detection limit) have been evaluated as part of the essential QA/QC. The reproducibilities of carbon dioxide and methane were estimated as 2.02 and 0.2%, respectively. In addition, method detection limits were measured as 0.61 and 0.06 ng, respectively. A test of sample loss rate has also been made for Tedlar bag and vial by assessing the absolute amount of sample loss on the wall. By transferring the samples contained in Tedlar bag to various sizes of Tedlar bags, we measured differences in the absolute loss quantity due to such transfer. In addition, we also examined such loss mechanism as a function of elapsed time and light penetration rate for vial. As results, carbon dioxide and methane have shown about 2% of sample loss due to such contact. It is also noticed that the amount of loss with vial surface is lower than that of Tedlar bag. Therefore, field collection of greenhouse gases using various container types should be made more cautiously to minimize the possibility of sample loss and bias related to such loss.

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Abstract
1. 서론
2. 연구 방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2009-539-017398724