It was determined according to Porter, Hrstich, and Chan (1985) using a reagent comprising 154 mg of FeSO4·7 H2O per liter of n-butanol:hydrochloric acid (3:2) was prepared.
It was determined according to Porter, Hrstich, and Chan (1985)using a reagent comprising 154 mg of FeSO4·7 H2O per liter ofn-butanol:hydrochloric acid (3:2) was prepared.