The right tool uses a calibrated laser diffraction system to size particles in a liquid. [As I understand it]
These tools are too new to be on the used lab equipment market and cost around $40K.
There are even newer imaging devices that will take photos of particles that small, in a liquid, costing even more, most likely.
You can probably buy an obsolete TEM that still works fine for a few hundred dollars. There's one one ebay for $3500
Why still use a TEM?
Cost is far less for those who profess expertise to buy.
The wrong tool is better than no tool.
It WAS the only tool there was?
More labs have one, it's more versatile and can be used for more things [Higher use to cost ratio] and few labs have the new stuff or reasons to get it.
These tests are cheaper than the right ones.
So, what happens to a + ion when hit with an electron beam anyhow?
Or a drop of water?..can't have a dry ion, or an electron beam in the air or a drop of water in a vaccum.
Ode
At 03:17 PM 11/24/2005 -0500, you wrote:
>>>>
On Wednesday November 23 2005 9:07 am, Ode Coyote wrote:<<<<
<SNIP>
> [ A TEM sample must be dry in order to use a TEM. Ionic silver
> doesn't survive drying, therefore, a TEM doesn't magnify what we
> make, it magnifies a byproduct of drying it.
> HOW that sample is dried and WHERE in the sample it is focused on
> can be fudged to show anything the operator wants to show. One thing
> it can't show is silver ions. They will always be silver oxide
> particles after being dried. Also, any dissolved products will
> crystalize when dried and a crystal can be grown to virtually any
> size that one wants to grow it.] {Ode/Ken}
Hi again Ode/Ken.
I've heard the above statements or similar statements a number of times on various lists. It often includes a statement to the effect that it (a TEM) is the wrong tool for the job. I don't question any of the above. However OTOH virtually every website offering data on colloidal, ionic, electrically isolated silver offer tem photos to illustrate what they are claiming. This is genuinely pervasive in the online medicinal silver community. Do you believe that this is being done to deliberately deceive the end user/consumer? If not, what is the reason for including this information? These TEM tests and photos are not cheap.
I also know that virtually any and all "scientific" data and test results can be, and often are, fudged and made to show the desired results. So why pick this one test which is so easily challenged? Unless there is nothing else available.
This brings me to my real question/s and reason for responding to your post.
If a TEM is not the right tool for the job, what is? Is there some other relatively readily available test which will show not only the amount of ionic silver present but actually measure the size/s of any silver ions present?
TIA
--
LTR
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