Quote:
Originally Posted by ScubaSteve
They're doing theirs through spectral analysis of a reactant test... never made sense to me to do it that way. Too complicated. Too many things to go wrong. No wonder they are struggling!
I was doing some reading tonight and it seems it should be fairly straight forward to make a carbonate selective electrode (provided I can synthesize a molecular tweezer  ). In fact, I think I could put pH, Calc, Alk and Nitrate all on the same electrode. |
You can do it!!! If you could design something usable, accurate, and marketable you could do quite well for yourself.
Quote:
Originally Posted by ScubaSteve
What kind of precision would people want for calc/alk measurements? Most test kits only give you 5% precision (i.e. 400 ppm ± 20 ppm), Elos is a bit better around 2.5%. Is that good enough? Is there a need or want to go better than that?
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5% accuracy is fine -that's what we're all used to anyway. More accuracy is better of course. I don't think you could market something with
less accuracy than test kits.