Title
Electron energy loss spectroscopy (EELS) and electron spectroscopic imaging (ESI) for the localisation of titanium in Chrysotile asbestosElectron energy loss spectroscopy (EELS) and electron spectroscopic imaging (ESI) for the localisation of titanium in Chrysotile asbestos
Author
Faculty/Department
Faculty of Sciences. Chemistry
Research group
Department of Chemistry - other
Publication type
article
Publication
London,
Subject
Chemistry
Source (journal)
Surface and interface analysis. - London
Volume/pages
19(1992), p. 439-444
ISSN
0142-2421
ISI
A1992JD45200079
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
High spatial resolution and sensitivity make electron energy loss spectroscopy (EELS) and electron spectroscopic imaging (ESI) excellent techniques for localizing low levels of titanium (approximately 2 wt.%) in ultrastructural features as small as cross-sections of chemically modified chrysotile asbestos fibres (i.e. 20 nm diameter). Visible beam damage, ie. mass loss and morphological changes, was drastically reduced when a Zeiss EM 902 fitted with a cryoholder was used to perform ESI using the three-window background extrapolation method. The electron micrographs revealed that the titanium distribution is located not only at the external surface of the fibre but also inside the fibril tube.
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