Phosphate
Model WAK- PO4
Molybdenum blue Method
Main reagent: Ammonium Molybdate
Range: 0.2 - 10 mg PO4
3-/L (ppm)
0.066 - 3.3 mg PO4
3--P/L (ppm)
(1) Fill the vial up to the first
line (1.5 mL) with sample.
Add 4 drops (~0.25mL) of
K-1 reagent.
(2) Put on the cap
and shake the
vial two or three
times.
(3) Remove the line
to clear the
aperture from
the top of the
tube.
(4) Press the sides of the tube
to expel approximately
half of volume. Maintain
pressed.
(5) Immerse the tube in
the sample. Rel
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