Quantofix Calcium test strips and reagents for the semi-quantittive determination of calcium in solutions.

Quantofix Calcium Test Kit has a gradation of scale: 0-10-25-50-100 mg/L Ca2+ yellow to red. The following ions only interfere above the indicated concentrations: >1000 mg/L Al3+, As3+, NH4+, Sb3+, K+,Na+, Bi3+, Br-, Cl-, CN-, CrO42-, [Fe(CN)6]3-, [Fe(CN)6]4-, I-, NO2 -, NO3 -, PO43-, SCN-, S O52-, acetate, ascorbate, citrate, tartrate. >500 mg/L B 2+, M 2+ > 250 mg/L Sr2+. >100 mg/L MnO4 -. Heavy metals interfere above the following concentrations: >100 mg/L Mn2+ > 50 mg/L Ni2+. >25 mg/L Fe2+, Fe3+, Pb2+. >10mg/L Cr3+, C 2+, Cu2+, Hg2+, Zn2+ .