According to Bruce Marx, very few chemists know how to accurately analyze CS.
A sample I sent to a major lab in Albuquerque came back 0.6 PPM when B. Berger and Bruce measured it at within 1 PPM of the 10 that I got with wet chemistry. Just from the Tynday observation it had to be greater than 5 PPM. JOH -----Original Message----- From: Reid Harvey [mailto:[email protected]] Sent: Thursday, June 12, 2003 7:15 PM To: silver list Subject: CS>ppm lab results and quirks Hi! I'm getting some confusing results here, from lab tests for ppm of concentrated CS. One lab is saying 50ppm in atomic absorption, but that they cannot measure for particulate silver with the technique. Another lab is saying 900ppm for another sample from the same batch, though telling me this is inaccurate and they'll repeat the procedure. But they're doing some titration process, which presumably does account for particulate silver. Is it true that atomic absorption will only measure ions? Does anybody know of some kind of simplified information that list all the various characterization techniques that apply? I'm thinking I'll try to get hold of the Hannah PWT device, a little more independent of the idiosyncrasies. Reid -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
