| Tartalom: |
http://dx.doi.org/10.1029/98GL01416 |
| Archívum: |
MTA Könyvtár |
| Gyűjtemény: |
Status = Published
Type = Article
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| Cím: |
Wet and dry sizes of atmospheric aerosol particles: An AFM?TEM Study
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| Létrehozó: |
Pósfai, Mihály
Xu, Huifang
Anderson, James R.
Buseck, Peter R.
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| Kiadó: |
American Geophysical Union (AGU)
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| Dátum: |
1998-06-01
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| Téma: |
QD06 Mineralogy / ásványtan
QE Geology / földtudományok
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| Tartalmi leírás: |
We studied the hygroscopic behavior of atmospheric aerosols by using a novel approach, the combination of atomic force microscopy (AFM) with transmission electron microscopy (TEM) imaging of the same individual particles. By comparing the dimensions of hydrated and dry ammonium sulfate particles collected above the North Atlantic Ocean, we determined that particle volumes are up to four times larger under ambient conditions (as determined by AFM) than in the vacuum of a transmission electron microscope. We interpret these changes as resulting from the loss of water. Organic films on the particles may be responsible for the relatively large water uptake at low relative humidities.
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| Típus: |
Article
PeerReviewed
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| Formátum: |
application/pdf
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| Azonosító: |
Pósfai, Mihály and Xu, Huifang and Anderson, James R. and Buseck, Peter R. (1998) Wet and dry sizes of atmospheric aerosol particles: An AFM?TEM Study. Geophysical Research Letters, 25 (11). pp. 1907-1910. ISSN 0094-8276
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| Kapcsolat: |
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