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Electron energy loss spectroscopy (EELS) and electron spectroscopic imaging (ESI) for the localization of titanium in chrysotile asbestos
Author(s) -
Berghmans P. A.,
Adams F. C.
Publication year - 1992
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740190182
Subject(s) - chrysotile , electron energy loss spectroscopy , titanium , spectroscopy , materials science , analytical chemistry (journal) , electron , energy dispersive x ray spectroscopy , scanning electron microscope , resolution (logic) , electron microscope , chemistry , asbestos , transmission electron microscopy , optics , nanotechnology , composite material , metallurgy , physics , chromatography , quantum mechanics , artificial intelligence , computer science
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 (∼2 wt.%) in ultrastructural features as small as cross‐sections of chemically modified chrysotile asbestos fibres (i.e. 20 nm diameter). Visible beam damage, i.e. 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.