Find a lab that has a flame spectrophotometer and knows how to use it.
The Hach Colorometer [like Ole Bob had] works pretty well
Titration processes normally used in water analysis are wildly inaccurate
at 10 PPM.
Ode
At 10:15 PM 12/14/2008 +0005, you wrote:
> Hi Mike , What ppm did your samples come back at thanks Ted
Lordy, Ted, that was years ago and the process I used then bears no
resemblance to what we do today. I think they were in the mid 20's, but
the brew was made with heated water and was the color of ale! Nor do I
remember what process they used to do the test, though I think I knew
at the time.
The point of me mentioning it was that it's a way to get your product
tested locally. Environmental testing is available most places there
are industrial activities generating effluent, and the local labs that
do it can probably be found in the phone book if you look for them.
Tell them you've got a few to a few tens of ppm of silver in clean
water and wanted to know its concentration. Ask them what testing
processes they might have available for that, how much they cost, and
whether they'll detect both dissolved (ionic) silver and neutral,
insoluble, or particulate forms.
It's not something I'd do very often, and who knows what kind of prices
you'll find when you look -- I'm sure they'll vary widely depending on
the lab -- but if you want to "know" what you're getting it's an
option.
Be well,
Mike D.
[Mike Devour, Citizen, Patriot, Libertarian]
[mdev...@eskimo.com ]
[Speaking only for myself... ]
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