60 [degrees]C leaching temperature, 3 h leaching time, 300 rpm, 300 mesh, 6 g ammonium thiocyanate
, 7g boulangerite ore) for leaching of Au are summarized in Table 1.
In the present study we validate a simple, cheap, safe, fast, reliable and reproducible spectrophotometry technique for the determination of iron in iron deficiency drugs (Feroglobin B12, Ferose-F and Ferose) using ammonium thiocyanate
(NH4SCN) as a chromogenic reagent
Folin-Ciocalteu reagent, sodium carbonate, gallic acid, rutin, aluminium chloride, sodium nitrate, sodium hydroxide, 2,2-diphenyl-1-picrylhydrazyl (DPPH), trichloroacetic acid, potassium ferricyanide, sodium acetate buffer, neocuproine, deoxyribose, EDTA, potassium phosphate buffer, hydrogen peroxide, ascorbic acid, TBA, 2,4,6 tripyridyl-s-triazine (TPTZ), ferric chloride, HCl, ammonium molybdate, sodium phosphate, sulfuric acid, ammonium thiocyanate
, and all other chemicals used were of analytical grade.