Hanna Instruments HI 83207-01 - Manual (Page 37)

37 Manganese LR
• Insert the second cuvette with the reacted sample into the instrument.
• Press Read to start the reading. The instrument displays the results in μμμμμg/L of manganese.
• Press or to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of potassium permanganate (KMnO
4
) and
permanganate (MnO
4
).
• Press or to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Aluminum above 20 mg/L
Cadmium above 10 mg/L
Calcium above 200 mg/L as CaCO
3
Cobalt above 20 mg/L
Copper above 50 mg/L
Iron above 10 mg/L
Lead above 0.5 mg/L
Magnesium above 100 mg/L as CaCO
3
Nickel above 40 mg/L
Zinc above 15 mg/L.