Message:

<p>[QUOTE=&quot;Oldhoopster, post: 8363509, member: 84179&quot;]XRF only penetrates to a depth of 100 microns or so (lots of things that could cause it to be more or less, but I find 100um to be a good working estimate).&nbsp; So you&#039;re only measuring the surface, which could be different from the bulk if any processing or environmental enrichment occurred.</p><p><br /></p><p>I would say that the Ag and Au of the surfaces should be close to the 96% and 93% you posted</p><p><br /></p><p>Also, I wouldn&#039;t put a great deal of faith in the trace elemental analysis unless the unit was calibrated for those elements.&nbsp; Since so many energy peaks overlap, the algorithm needs to be pretty good to get that data.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in