Titration is not NEARLY accurate enough to measure 15 PPM Even an AA Spectrophotometer has great difficulty at low concentrations and 3 runs of the same sample averaged is the procedure
ode On Tue, Jul 7, 2020 at 7:54 PM Marshall <[email protected]> wrote: > I am helping my son in law with his colloidal silver production. But I > am running into something I don't understand. He has been using a hanna > pure water meter to measure the ionic ppm. He has been applying a 1.1 > correction factor, that is brewing for a 14 uS, to get 15 ppm. > > He just ordered and received a hanna silver ion colorimeter and we have > been testing with it. When we dissolve the CS silver in nitric acid, > the readings are way off, near zero. I am going to contact Hanna on > that, I am assuming that either the nitrate ion, or the pH is messing it > up. > > But testing some week old CS, I am getting about 6 ppm on the > colorimeter, but 12 uS (or about 13 ppm) on the conductivity meter. I > don't know which one is wrong. Anyone have experience with the > colorimeter? > > Thanks, > > Marshall > > > -- > The Silver List is a moderated forum for discussing Colloidal Silver. > Rules and Instructions: http://www.silverlist.org > > Unsubscribe: > <mailto:[email protected]?subject=unsubscribe> > Archives: > http://www.mail-archive.com/[email protected]/maillist.html > > Off-Topic discussions: <mailto:[email protected]> > List Owner: Mike Devour <mailto:[email protected]> > > >
