Investigation of aged Asian dust particles by the combined use of quantitative ED-EPMA and ATR-FTIR imaging

Title
Investigation of aged Asian dust particles by the combined use of quantitative ED-EPMA and ATR-FTIR imaging
Authors
노철언
Issue Date
2013
Publisher
ATMOSPHERIC CHEMISTRY AND PHYSICS
Series/Report no.
ATMOSPHERIC CHEMISTRY AND PHYSICS ; Vol13 no.6 Startpage 3463 Endpage 3480
Abstract
In our previous works, it was demonstrated that the combined use of quantitative energy-dispersive electron probe X-ray microanalysis (ED-EPMA), which is also known as low-Z particle EPMA, and attenuated total re- flectance Fourier transform infrared spectroscopy (ATRFTIR) imaging has great potential for a detailed characterization of individual aerosol particles. In this study, extensively chemically modified (aged) individual Asian dust particles collected during an Asian dust storm event on 11 November 2002 in Korea were characterized by the combined use of low-Z particle EPMA and ATR-FTIR imaging. Overall, 109 individual particles were classified into four particle types based on their morphology, elemental concentrations, and molecular species and/or functional groups of individual particles available from the two analytical techniques: Ca-containing (38 %), NaNO3-containing (30 %), silicate (22 %), and miscellaneous particles (10 %). Among the 41 Ca-containing particles, 10, 8, a
URI
http://dspace.inha.ac.kr/handle/10505/33162
ISSN
1680-7316
Appears in Collections:
College of Natural Science(자연과학대학) > Chemistry (화학) > Journal Papers, Reports(화학 논문, 보고서)
Files in This Item:
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