Use of an air brush to spray dry samples for X-ray powder diffraction
- 1 March 1999
- journal article
- Published by Mineralogical Society in Clay Minerals
- Vol. 34 (1), 127-135
- https://doi.org/10.1180/000985599545984
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.Keywords
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