Mike & Frank, Sorry that I didn't complete my thoughts during my last post on this. The ppm as has been noted many times, does have to be combined with particle size and purity for a complete assay, but the TDS-1 would, I think, take care of the ppm part. As to the particle size, I know that microscopy has been the primary focus but that would seem to have some inherent problems as well. I would intuitively expect that most CS is composed of a range of particle sizes. I have been wondering lately if there are any mechanical filters capable of operation at such small sizes. Has this possibility been looked at already? The claims for biological activity are with particle diameters in the .005 to .015 micron range. If a mechanical filter where available with an absolute filtering ability of say .02 microns then this might be a reasonable way to gain confidence that a particular CS batch is in the biologically effective range. With a batch that was filtered and then ppm tested we could have a pretty good idea of just what we had without expensive and time consuming lab tests. Just an idle thought for the moment. I'll do some research and post as time allows.
Regards, Doug. -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the subject: line. To post, address your message to: [email protected] List maintainer: Mike Devour <[email protected]>
