Quantofix Zinc test strips and reagent for the semi-quantitative determination of zinc (Zn2+) in solutions

Quantofix Zinc has a gradation of scale: 0-2-5-10-25-50-100 mg/L Zn2+ orange to red.

The following ions only interfere in larger concentrations: > 1000 mg/L Ag+, Al3+, Bi3+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Mn2+, NH4+, Pb2+, Sn2+, Sn4+, Cl-, CrO42-, NO2 -, NO3 -, PO43-, SCN-, SO32-, SO42-, acetate, ascorbate, citrate, oxalate, tartrate. The following ions will cause low mg/L Ni2+. The presence of Cu2+, >10 mg/L Hg+ /Hg2+ (precipitation with iron or cadmium powder in weakly acidic solution) and >50 mg/L MnO4- (destroy with hydroxylammonium chloride in acidic solution) cause a brown coloration of the test field.