>" Now if you let your CS sit for 22 days and take a third sample at
>10 cm below the liquid surface, you can determine how much of your
>silver is 0.1 micron or less in size (this assumes that a 0.1 micron
>particle will indeed settle 10 cm in 22 days - a fact that I can't
>guarantee witho
Dean,
I will try to answer your questions, pasted below:
Just a question. Does Stokes Law apply to colloidal suspensions?? Does the +
charge on the particles modify the gravitational action on those particles??
According to Stokes' Law, the terminal velocity of a spherical particle
settling und
There is an error in my previous message. In Stokes' equation in the form I
gave, the units reduce to seconds, not centimeters.
Jeff La Favre
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I would like to submit a possible approach to measuring the size of silver
particles in CS that does not require a microscope. The method is drawn
from soil science, specifically, methods used to analyze particle sizes in
soil.
Particles of soil are routinely sized by passing a sample through a s
Hi List,
I would be interested in hearing from those of you on the list that are
currently (or in the past) using CS for Lyme disease. What is the dose you
take (volume per day and PPM).
Jeff La Favre
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To join or quit
>One thing that is possable is checking the sizes of particals with the
>darkfield. If we want a uniform size partical and if it is viewed to be
>many different sizes under the darkfield then we know that something
>has to be changed. If we know that we need .001 and we know that it's
>not possable
Here is a response to questions by Johan and Jim.
Darkfield microscopy is accomplished by using a special condenser. The
condenser delivers a hollow cone of light with the tip of the cone focused
on the specimen. The angle of the light rays is such that all of the light
misses the microscope obj
Mike D. wrote:
>I'd like to follow up with the optical microscopy route if for
>nothing else than to check samples for gross problems, and possibly
>to help us develop sample preparation techniques that would work for
>the SEM. At least one fellow I talked to tried to get some SEM done
>on his CS.
Hi George and list,
Does your video camera have a lens that can be removed? For microscope work
you need a special lens that takes the place of the microscope eyepiece
(video relay lens). This lens attaches to the body of the camera and fits
into the eyepiece tube of the microscope. Edmund Scie
In double checking my message I discovered an error in the resolution
formula. The correct formula is given below:
R = wavelength/ (2)(numerical aperture)
Then the resolution would be:
R = 0.5 microns/ (2)(1.3) = 0.2 microns
Therefore, the smallest particle that can be measured directly by a
I have noticed some discussion about using microscopy to determine particle
size of CS. I would like to add this information in case it has not been
discussed in the past.
The resolution of a light microscope is limited by the wavelength of light
and can be determined roughly by the following for
I am new to this list and have been following recent messages with great
interest. I would like to pledge $20 to your research efforts.
My wife has been ill for two years and I believe that she may have Lyme
disease. After seeing a number of doctors, we finally have an appointment
to see a LLD.
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