Palladium in waste solutions

Hi,

First excuse my bad english. I can read and understanding the most things, but i can not write very well.
I have searched a lot on the net, on Hoke and here on the Forum for detecting and recovery of potential palladium in waste solutions. But dont´t found nothing.
I have three different stock pots. One is for used cucl2-bubbler-solutions ( i don´t work with h2o2 ). Another is for spend solutions from the crock pot method with hcl,( no h2o2 used ). Another is for rinsing solutions from nitric leaches and ar.
The first and the third stock pot are not a problem. The recovery of potential palladium is explained very well on Hoke or here in the forum.
But on the spend solutions from the cock pot i am very insure. I dissolved with the crock pot method any type of electronic scrap, and all base metals, which could be found in electronic scrap. Of course in the solution is a lot of tin chlorides like sncl2 and sncl4 and perhaps other tin compounds.
I know very well what happens when gold chloride and stannous chloride are getting mixed. Now the gold don´t dissolve in the crock pot, and therefore i have no gold colloids in my stock pot. But i read often that palladium can dissolve in hcl-base metal solutions, if these solutions are not saturated with base metal. What happens with dissolved palladium ( in hcl ) when it gets mixed with stannous chloride ? Is the result a colloid ? How can i recover potential dissolved palladium of these solutions ?

Please help.

I didn't find the right solution from the Internet.

References:
www.goldrefiningforum.com/~goldrefi/phpBB3/viewtopic.php?t=23596
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Thanks