RE: Measuring the particle size of CS - problem

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 without

RE: Measuring the particle size of CS

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

Measuring the particle size of CS

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

CS dose for Lyme treatment?

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 -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit

Re: Darkfield microscopy

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 to

Darkfield microscopy

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

Re: Preparing CS samples for micrcroscopy

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. He

Re: resolution of the light microscope

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

Resolution of the light microscope

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