ISSN:
1573-2932
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract Nitrate-containing aerosols, collected on Nuclepore filters and electron microscope screens, precoated with nitron, cause characteristic reaction patterns that can be identified by scanning and transmission electron microscope (STEM). Interfacing the STEM with an X-ray energy analyzer and selected area electron diffraction permits the simultaneous detection of elements of atomic number larger than 11 and of minerals in individual aerosols. In an application of this technique to aerosols collected at the Boulder Atmospheric Observatory and at Tel Aviv University, the aerosols were found associated with wet crustal particles. They were found as minerals and air pollution aerosols containing one or a combination of several elements. The precoated electron microscope screens, permitted elemental analysis of individual micrometer-size particles providing new information on the characterization of aerosols mainly the presence of water that can not be obtained by bulk analysis commonly employed in the study of nitrates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00282400
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