[pure-silver] Measuring low levels of silver in fixer
- From: Peter Badcock <peter.badcock@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sun, 31 Jan 2010 18:35:32 +1100
Sorry for the cross post if any of you also read APUG, but I'll post
conclusions to both lists.
So I've searched APUG, pure_silver and the 'net but to little avail. Can
folks please list me a few different inexpensive and relatively easy methods
to measure/test when the silver in my (yet to be processed/recovered) fixing
solution is below 50ppm ? Then my local government authority will permit it
to be discarded down the drain.
Some ideas include measuring the conductivity of the sol'n (assuming I am
testing for dissolved silver). Also perhaps Colorimetry. No test strips will
test such low levels of silver.
rgds
Peter
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