I finally got around to processing the powders from the copper cell pictured here....
http://goldrefiningforum.com/phpBB3/viewtopic.php?f=86&t=24397&start=60#p274435
I incinerated the powders, ran a wash cycle on them then ran them in AR. Dropped it with SMB then another wash cycle. I very was surprised that they came out as clean as they did on the first run. The solution even tested negative for gold after the drop.
http://goldrefiningforum.com/phpBB3/viewtopic.php?f=86&t=24397&start=60#p274435
I incinerated the powders, ran a wash cycle on them then ran them in AR. Dropped it with SMB then another wash cycle. I very was surprised that they came out as clean as they did on the first run. The solution even tested negative for gold after the drop.