Assaying, Microscopy, Mineralogy & XRF/XRD

Assaying, Microscopy, Mineralogy & XRF/XRD2017-04-04T06:57:57-04:00
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Handheld XRF on testing gold in solution and gold in carbon. (1 reply)

Nipher
7 months ago
Nipher 7 months ago

On a gold Mine set up, can we entirely depend or use a 56 element handheld XRF Analyser for analysis of gold in solution, gold in carbon, gold in bullion, gold in solid samples from geology? We are used to the use of the Atomic Absorption Spectrometer?

micksmyth
4 weeks ago
micksmyth 4 weeks ago

We have found that XRF is a good tool to get quick results. However we have found limitations in its use. Firstly the sample/material has to be all metallic, because the XRF gives results out of 100%. So a soil sample might read 5% gold, even though the material/sample isn't metallic. In addition there has been interference with elements in reading. Finally it can't really get to the low concentrations. We have moved from XRF to ICP-OES and have had great success.

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