Hach DR2400 - Page 412

Nickel
Nickel
Page 2 of 6
Nickel_PP_Other_PAN_Eng_Ody.fm
5. Using the plastic
dropper provided, add
0.5 mL of 0.3% PAN
Indicator Solution to
each cell.
Cap. Invert several times
to mix.
6. Touch the timer icon.
Touch
OK.
A 15-minute reaction
period will begin.
During color
development, the sample
solution color may vary
from yellowish-orange to
dark red, depending on
the chemical makeup of
the sample. The blank
should be yellow.
7. When the timer
beeps, add the contents of
one EDTA Reagent
Powder Pillow to each
cell. Cap and shake to
dissolve.
8. Wipe the blank and
place it into the cell
holder.
9. Touch Zero.
The display will show:
0.000 mg/L Ni
The instrument will zero
at 560 and 620 nm.
10. Wipe the sample cell
and place it into the cell
holder.
11. Touch Read.
The instrument will read
the sample at 560 and
620 nm.
Results will appear in
mg/L Ni.
10 mL 10 mL 10 mL10 mL
10 mL
Zero
10 mL
Read