3-(2-Pyridyl)-5,6-di(2-furyl)-1,2,4-triazine-5′,5′′-disulfonic acid disodium salt

for spectrophotometric det. of Fe(III), ≥98.5%

for spectrophotometric det. of Fe in serum, ≥99.0%

for the spectrophotometric det. of Fe, ≥98.0% (HPLC)

for spectrophotometric det. of Ag, Fe, Ru, ≥98.5%

for spectrophotometric det. of Fe, 97.0%

for spectrophotometric det. of Zn(II), Cu(II), Fe(II), Co(II), H₂O₂, ≥95.0% (HPLC)

~80% in H₂O, for spectrophotometric det. of palladium, iron, uranium(VI), molybdates and nitrites

for spectrophotometric det. of Fe, ≥99.0% (HPLC)

for the spectrophotometric determination of Fe, Pd, V, ≥99.0%

for photometric determination of Fe(II), ≥98.0% (HPLC)