The automated analysis of asbestos in the SEM by EDS is a powerful technique that enables the quantity, composition, and morphology of suspected asbestos fibres to be quickly characterised.
Historically, most asbestos analysis in the SEM has been
performed manually with the operator obtaining an electron
image of the sample, identifying any particles/fibres of interest
by eye, and then selecting a location from which to obtain
EDS spectra. This technique is laborious and time-consuming
and potentially open to bias. A complementary approach
is to perform an automated analysis of a complete sample
stub making use of image processing techniques to locate
fibres and obtain EDS spectra from them. This approach is particularly suited to the analysis of non-agglomerated fibres. Here, we discuss the use of AZtecFeature to do this.
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