Hi Bob, What is your glassware source; my class 50 mL A mixing cylinder costs 60 bucks. A matched set of test tubes for the spec. were 30 a pair used.
James-Osbourne: Holmes -----Original Message----- From: Robert L. Berger [mailto:[email protected]] Sent: Friday, June 01, 2001 9:12 AM To: [email protected] Subject: Re: CS>Measuring particle concentration of colloids Chip, The ONLY thing that will measure PPM accurately at a reasonable cost is a spectrophotometer. Hanna makes one for $150.00 a single frequency model which would work excellently for silver. The chemicals will cost another $105.00 plus another $20.00 for some glassware. If you go that route I can supply you with a NBS certified sample to set up you spect. For gold you will have to use Kinball labs as it must be done with an AA device. "Ole Bob" -- 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] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
