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- Quantofix - Zinc (#91310)
Quantofix - Zinc (#91310)
Pack Size: box of 100 strips & reagent. Hazard Class /UN Number: Not Restricted. Storage Temp: Room Temperature. Test sticks and reagents for the semi-quantitative determination of zinc (Zn 2+ ) in solutions. Gradation of scale: 0-2-5-10-25-50-100 mg/l Zn 2+ orange to red.
The following ions only interfere in larger concentrations:
> 1000 mg/l Ag + , Al 3+ , Bi 3+ , Ca 2+ , Cd 2+ , Co 2+ , Fe 2+ , Fe 3+ , Mn 2+ , NH 4 + , Pb 2+ , Sn 2+ , Sn 4+ , Cl û , CrO 4 2û , NO 2 û , NO 3 û , PO 4 3û , SCN û , SO 3 2û , SO 4 2û , ace-tate, ascorbate, citrate, oxalate, tartrate
The following ions will cause low results:
- > 500 mg/l Cr 3+ ,
- > 200 mg/l CN û ,
- > 100 mg/l Mg 2+ ,
- > 50 mg/l S 2û ,
- > 25 mg/l Ni 2+ .
The presence of Cu 2+ , > 10 mg/l Hg + /Hg 2+ ( precipitation with iron or cadmium powder in weakly acidic solution) and > 50 mg/l MnO 4 û (destroy with hydroxylammonium chloride in acidic solution) cause a brown coloration of the test field.