Clay occlusion of respirable quartz particles detected by low voltage scanning electron microscopy, X-ray analisis

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<rdf:Description>
<dc:creator>Wallace, W.E.</dc:creator>
<dc:date>1990-04-01</dc:date>
<dc:description xml:lang="es">Sumario: Respirable-sized dust particles from a clay mine and mill were examined for aluminium and silicon content by scanning electron microscopy-energy dispersive X-ray analysis at incident electron energies of 5-20 keV. Most of the high silica content particles, those which had a silicon to silicon plus aluminium signal fraction, measured at 20 keV, of 0.9 or greater, showed a decrease in the silicon fraction of signal with decreasing incident electron energy, down to values of between 0.6 and 0.8 at 5 keV: this decrease was a function of particle size and composition. Simple models for silicon fraction of signal vs incident electron voltage suggest this behavour is due to a heterogeneous particle structure in which an aluminosilicate coating occludes the surface of a silica particle core. The coating survives incubation in a major component of pulmonary surfactant</dc:description>
<dc:identifier>https://documentacion.fundacionmapfre.org/documentacion/publico/es/bib/46002.do</dc:identifier>
<dc:language>eng</dc:language>
<dc:rights xml:lang="es">InC - http://rightsstatements.org/vocab/InC/1.0/</dc:rights>
<dc:subject xml:lang="es">Higiene industrial</dc:subject>
<dc:subject xml:lang="es">Contaminantes químicos</dc:subject>
<dc:subject xml:lang="es">Polvo de cuarzo</dc:subject>
<dc:subject xml:lang="es">Arcilla</dc:subject>
<dc:subject xml:lang="es">Cuarzo</dc:subject>
<dc:subject xml:lang="es">Rayos X</dc:subject>
<dc:subject xml:lang="es">Difracción</dc:subject>
<dc:subject xml:lang="es">SEM</dc:subject>
<dc:subject xml:lang="es">Partículas ambientales</dc:subject>
<dc:subject xml:lang="es">Métodos de análisis</dc:subject>
<dc:type xml:lang="es">Artículos y capítulos</dc:type>
<dc:title xml:lang="es">Clay occlusion of respirable quartz particles detected by low voltage scanning electron microscopy, X-ray analisis</dc:title>
<dc:title xml:lang="es">Título: The Annals of occupational hygiene</dc:title>
<dc:relation xml:lang="es">En: The Annals of occupational hygiene. - Oxford [etc.]. - nº 2, April 1990 ; p. 195-204</dc:relation>
</rdf:Description>
</rdf:RDF>