Two immediate questions I have are...
1. When would a solution be determined, stability wise, as suitable for testing
for ion content using this method? Would this be determined when the pH has
stabilised over time?
2. If on any given day after adequate time in storage, temperature wise, meter
readings of a given solution may/will vary - what's *still* going on within
that solution? Does warm water conduct electricity significantly better than
water only 1 or 2 degrees cooler? And how would these meter reading variations
in solutions of differing water temperatures of only 1 or 2 degrees affect
accuracy of ion content measurement using this method of measurement?
N.
> From: [email protected]
> Date: Sun, 12 Feb 2012 19:47:36 +1030
> To: [email protected]
> Subject: CS>Ion Selective electrodes..
>
>
> > marshall nelson wrote... " A selective ion probe meter will give
> > accurate silver ion concentrations from 0.1ppm to 10,000 ppm"
>
>
> Its interesting that you mention these gadgets. Out of interest I've
> been reading up on them recently. They seem a pretty difficult way to
> measure ionic silver, way beyond the know-how of most of us, and not
> simply a matter of dipping an EC or ppm meter into a solution like we
> normally do. It appears they require lots of calibrating in a
> solution of known ionic silver content (which would present a few
> obvious problems I would think). And it looks like an investment of
> quite a few thousand dollars would be required to get set up properly
> with an ion selective measuring system.
>
> Lots of info here about them...
>
> http://www.nico2000.net/Book/Guide1.html
>
> However its interesting to note that Frank Key's Colloidal Science
> Lab does not use ISE's to measure ionic content. I would think such a
> device would be right up his alley if they work as imagined.
>
> Perhaps theres a problem with actually using them to measure ionic
> silver that I have not grasped.
>
> http://www.colloidalsciencelab.com/labMeasurements.htm
>
>
> Cheers
> David (Australia)
>
>
> >
> >
> >
> > From: marshall nelson <[email protected]>
> > Date: 11 February 2012 3:55:09 AM
> > To: [email protected]
> > Subject: Re: CS>Mesosilver
> >