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Use of an air brush to spray dry samples for X-ray powder diffraction

Published online by Cambridge University Press:  09 July 2018

S. Hillier
S. Hillier*
Affiliation:
Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
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Abstract

The construction and operation of a spray drier is described where the spray is produced using an air brush, essentially a miniature spray gun. The spray-dried products consist of spheres 50–60 µm in diameter and typical product recoveries are 80%, a marked improvement over simple two-nozzle systems. The spray-dried samples are easy to load into XRD powder holders and present a smooth surface and relatively constant bulk density to the X-ray beam. Problems of preferred orientation are effectively eliminated and the resulting X-ray powder patterns are completely reproducible by different operators.

Type
Research Article
Information
Clay Minerals , Volume 34 , Issue 1 , March 1999 , pp. 127 - 135
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1999

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