Range:/0, 0.2, 0.5, 1, 2, ≥5 mg/l(0 - ≥5 mg Zn2+/L (ppm)

Method:PAN

반응시간:1분

측정횟수:50test

Interferences

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

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

interferences are insignificant:

≤ 1000 mg/L : As3+, B3+, Ba2+, Ca2+, Cl－, F－, I－, K+, Mo6+, Na+, NH4

+, NO2

－, NO3

－, PO4

3－, SO3

2－,

SO4

2－, Phenol, Residual Chlorine, Anionic surfactant

≤ 100 mg/L : Fe3+, Mg2+

≤ 50 mg/L : Cd2+, Cr3+

≤ 20 mg/L : Cr6+, Ni2+

≤ 10 mg/L : Ag+, Pb2+, V5+, Sn2+

≤ 5 mg/L : Co2+, Fe2+

≤ 3 mg/L : Cu2+

Sub-ppm level : Mn2+

The Zn PACKTEST is suitable for sea water samples.

The Zinc PACKTEST can also react with Mn2+. If Mn2+ is present in the sample, adjust the pH up to

10~12 in order to precipitate Mn2+ .

It is also possible to measure Mn2+ concentration using the manganese PACKTEST (ref: WAK-Mn)

and to subtract Mn2+ concentration from the value provided by the Zinc PACKTEST.