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Detection and Identification of Asbestos by Microscopical Dispersion Staining
Walter C. McCrone
Environmental Health Perspectives
Vol. 9 (Dec., 1974), pp. 57-62
Published by: The National Institute of Environmental Health Sciences
Stable URL: http://www.jstor.org/stable/3428258
Page Count: 6
You can always find the topics here!Topics: Liquids, Asbestos, Laboratory staining techniques, Light refraction, Dispersions, Wavelengths, Quartz, Chromatic substances, Microscopes, Environmental health
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Asbestos fibers as small as 1 μm in diameter can be uniquely identified by light microscopy by employing dispersion staining methods. The technique described herein involves suspension of fibers in liquids of known refractive indices and observation of color display by means of a dispersion staining objective. Wavelengths or indices of refraction may be determined at right angles to and parallel to fiber axes. This method is rapid and sensitive for identification purposes.
Environmental Health Perspectives © 1974 The National Institute of Environmental Health Sciences