Has anyone tried making the R-0871 reagent at home? I can order deionized water and ferrous ethylenediamine sulfate from City Chemical or Fischer Scientific, and it would be a lot cheaper than buying the Taylor reagent. My preliminary calculations (admittedly based on a guess about the molar content of the DPD powder) lead me to believe that 10 liters of water and 13.5 grams of the sulfate will yield somewhere around 2,500 tests for less than $50. If anyone has tried this with either success or failure, please share your experience.
Thanks!
Thanks!