書誌事項
- タイトル別名
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- Organic Analysis of Nanoparticles in Diesel Exhaust and the Atmosphere by Thermal Desorption-Gas Chromatography / Mass Spectrometry
- カネツ ダッチャク GC MS ニ ヨル ディーゼル ハイキ オヨビ タイキチュウ ナノ リュウシ ノ ユウキ セイブン ブンセキ
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説明
The sensitivity of thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) was greatly improved by replacing the thermal desorption unit and mass spectrometer and by applying the selected ion monitoring method. Quantification limits of 12 polycyclic aromatic hydrocarbons (PAHs) , 17α (H) , 21β (H) -hopane, and C18-C36 n-alkanes were 4-17, 13, and 13-39 pg, respectively. For extremely small amount (≈ 20 μg) of standard reference materials (1649a, 1650b, and 2975) , PAH concentrations determined by TD-GC/MS agreed reasonably well with the certified values. TD-GC/MS was applied to size-resolved particles in diesel exhaust, and in roadside and background atmospheres. For diesel exhaust particles emitted under no-load condition, 17α (H) , 21β (H) -hopane concentrations per particle mass were higher in smaller particles, suggesting that lubricating oil was the major component of the nuclei-mode particles (particles with a modal diameter of 0.01-0.03 μm) . For the roadside and the background particles, 17α (H) , 21β (H) -hopane concentrations per particle mass were also higher in smaller particles after correction for evaporation of 17α (H) , 21β (H) -hopane in the atmosphere. The results suggest that nanoparticles (≤0.03 μm) in the roadside and the background atmospheres originated mainly from oil-rich nanoparticles in diesel exhaust, although a large proportion of their original components had evaporated.
収録刊行物
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- エアロゾル研究
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エアロゾル研究 23 (3), 163-171, 2008
日本エアロゾル学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282679318959360
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- NII論文ID
- 10021919133
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- NII書誌ID
- AN10041511
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- COI
- 1:CAS:528:DC%2BD1cXhtFOiur7P
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- ISSN
- 1881543X
- 09122834
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- NDL書誌ID
- 9654573
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
