Nickel; Method 8150; Powder Pillows - Hach DR2400 Manual

DR/2400

Method 8150

Powder Pillows

Scope and Application:
* Adapted from Watanabe, H., Talanta, 21 295 (1974)
Tips and Techniques
• Cobalt concentration can be determined with the same sample by using Program Number 110.
• Wipe the outside of sample cells before each insertion into the instrument cell holder. Use a damp towel followed by a dry one to
remove fingerprints or other marks.
Powder Pillows
Hach Programs
1.
Touch
.
Hach Programs
Select program
.
340 Nickel, PAN
Touch .
Start
Nickel_PP_Other_PAN_Eng_Ody.fm
For water and wastewater; digestion is required for determining total nickel
2.
Fill a sample cell to
the 10-mL mark with
sample (this is the
prepared sample).
1-(2 Pyridylazo)-2-Napthol (PAN) Method*
10 mL
3.
Fill another sample
cell to the 10-mL mark
with deionized water
(this is the blank).

Nickel

(0.007 to 1.000 mg/L)
Method 8150
10 mL 10 mL
4.
Add the contents of
one Phthalate-Phosphate
Reagent Powder Pillow
to each cell. Cap.
Immediately shake to
dissolve.
If the sample contains
iron, make sure that all the
powder is dissolved
before proceeding to
step 5.
Nickel
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