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Platinum mould flatness and its effect on XRF analysis

In XRF techniques the observed fluorescent X-ray counts are not directly proportional to concentration but must be corrected for absorption-enhancement effects caused by the influence of all other elements in the samples. (more…)

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Automatic weighing of XRF Press Pellet binders

For x-ray florescence analysis to be performed, a solid sample should first be prepared into a fused glass disc or pressed pellet.  In both techniques the sample must first be milled to a consistent particle size that is capable of further preparation.  (more…)

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Platinum Products for Crystal Growth

Crystals grow as ions and molecules add to the pre-existing lattice structure, which extends in a repeating pattern in three dimensions. This natural process has been simulated and recreated in laboratory conditions to obtain single crystal metals, semiconductors, and synthetic gemstones for a raft of application areas. Manufacturers generally use one of two techniques to encourage crystal growth: the Bridgman-Stockbarger method; or the Czochralski method. Each of these has its advantages and drawbacks, but a unifying difficulty for all crystal growth techniques is the acquisition of materials capable of withstanding difficult process conditions.

Platinum products are widely used for crystal growth due to their exceptional non-reactivity in the presence of molten materials and pr...

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