Range:0.02, 0.1, 0.2, 0.5, 1, 5 mg/l

Method:4-Aminoantipyline Color Comparison Method with Enzyme

Reaction Time:1min

Quantity(pcs/box):50

측정절차

Interferences

Standard colors were determined from standard solutions. However, coexisting substances will

cause inaccurate results. The list below reports ion concentrations under which ones interferences

are insignificant:

≤ 1000 mg/L : Ag+, B3+, Ba2+, Ca2+,Cl-, F-, I-, K+, Mg2+, Na+, NH4

+, NO3

-, PO4

3-, SO4

2-, Zn2+

≤ 500 mg/L : NO2

-, Phenol

≤ 200 mg/L : Ni2+

≤ 100 mg/L : Al3+, Cr3+, Anionic surfactant

≤ 50 mg/L : Cu2+

≤ 20 mg/L : Co2+, Mn2+

≤ 5 mg/L : Cr6+

≤ 2 mg/L : Mo6+

≤ 1 mg/L : CN-, Fe3+

Sub-ppm level : Fe2+, Residual chlorine

The Hydrogen Peroxide PACKTEST is suitable for sea water samples.

Hydrogen peroxide compounds like residual chlorine or oxidizing interfer positively.

Example:

Residual chlorine 1 mg/L ������ H2O2 0.5 mg/L

Residual chlorine 0.5 mg/L ������ H2O2 0.02 mg/L

Reductive substances can interfere by hydrogen peroxide consumption.

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