Originally Posted by cmor1701d
I'd love to see what you come up when you have time (after hitting the lottery).
Specific ion electrodes have to be a couple hundred apiece.
ORP was mentioned, I was wondering what use that would be? ORP measures the amounts of oxidizeable substances in solution. In my world, I use ORP to measure the ratio of ferrous to ferric ion concentrations in paint baths, or chlorine (hypochlorite or hypochlorous acid) as a biological control agent in water. Perhaps a NO3
ratio? Hmmmm, both are oxidants however. Maybe total (non-ammonical) soluble nitrogen?