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<p>[QUOTE="desertgem, post: 2273115, member: 15199"]XRF spectrometers are limited in the depth of sample they can accurately analyze. Depending on density, the depth many be in micrometers, up to 50+millimeters in soft minerals such as coal. That is why the wavelength device was used to analyze the 1000 oz gold bars such as in storage instead of XRF.[/QUOTE]</p><p><br /></p>
[QUOTE="desertgem, post: 2273115, member: 15199"]XRF spectrometers are limited in the depth of sample they can accurately analyze. Depending on density, the depth many be in micrometers, up to 50+millimeters in soft minerals such as coal. That is why the wavelength device was used to analyze the 1000 oz gold bars such as in storage instead of XRF.[/QUOTE]
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