Hi Trem, I do not care whose spectrophotometer one uses. It must be calibrated vs a known standard.
You might go to the public library and get the video made by UCLA of spectrophotography. It give a very good explaination of how it works and what is required to calibrate one. Mine is make by Hach and I use there chemicals but it still had to be calibrated as wach mahine has its own idiosyncrasies. "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: silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: silver-list@eskimo.com Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <mdev...@eskimo.com>