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<p>[QUOTE=&quot;BadThad, post: 532989, member: 17261&quot;]I&#039;m ready to kill my boss when he gets back! LOL He was the last one to use my SEM and he had it so jazzed....arrrggg....I didn&#039;t have time today to get all the settings corrected, busy day...but...I did toss it on for some quick-n-dirty.</p><p>&nbsp;</p><p>It does indeed appear to be a stain. The levels of Cu, Sn and Zn were the same in the darkened areas as the clean areas. In the darkened area, there were higher concentrations of C and O, indicating oxidized organic material. Just above the E.PLUR, I was picking up sulfur, it&#039;s the only place I found sulfur, so that area is toned.</p><p>&nbsp;</p><p>I wish I had time to get the picture better and the EDXRF graph corrected. The knucklehead changed the element intensities on the graph to blue so they didn&#039;t print out. I&#039;d have to fiddle with it to get it back to white...no time...so...the height of the elements on the graph relate to intensity (concentration).[/QUOTE]</p><p><br /></p>

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