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  • 1
    ISSN: 1434-6036
    Keywords: 79.20.Kz ; 61.46.+w ; 61.16.Bg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The crystal and electronic structure of solidC 76 has been studied using transmission electron microscopy and electron energy-loss spectroscopy in transmission. C76 forms a close packed structure with an average facecentred cubic symmetry. From valence band and core electron excitations information on the dielectric function and the unoccupied density of states has been obtained.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 5 (1976), S. 49-54 
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Description / Table of Contents: With special reference to the X-ray fluorescence analysis of aerosol samples, two problems are treated. These are, first, a simple method of preparing standards on filter paper disks (it consists of applying drops of one microlitre of solutions in an exact point raster) and second, the influence of absorption and scattering by the filter paper matrix and the aerosol layer. It is suggested to use one-layer and three-layer sample arrangements to gain corrective terms of the matrix and particle size effects.
    Notes: Zwei bei der Röntgenfluoreszenzanalyse von Aerosol-präparaten auftretende Probleme werden behandelt: (1) eine einfache und genaue Methode zur Herstellung von Eichpräparaten. Es wird vorgeschlagen, definierte Lösungstropfen in einem exakten Punktmuster auf Filterpapier aufzubringen. (2) Die Korrektur der Streu- und Absorptionseffekte des Filters und der abgeschiedenen Schwebstoffe. Die aus Messungen in Einfach- und Dreifach-Filterpaketen gewinnbaren Korrekturterme werden am Beispiel des erfahrungsgemäß kritischen Elements Calzium dargestellt.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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