Phosphorus, Reactive (Orthophosphate)
Phosphorus, Reactive (Orthophosphate)
Page 2 of 6
PhosphorusReac_TNT_Other_PV3_Eng_Ody.fm
Interferences
5. Touch Zero.
The display will show:
0.00 mg/L PO
4
3–
6. Using a funnel, add
the contents of one
PhosVer 3 Phosphate
Powder Pillow to the vial.
7. Cap the vial tightly
and shake for 10–15
seconds. The powder will
not dissolve completely.
8. Touch the timer icon
Touch
OK.
A two-minute reaction
period will begin.
Read samples between
two and eight minutes
after adding the PhosVer 3
reagent.
9. Wipe the outside of
the vial with a damp
towel, followed by a dry
one, to remove
fingerprints or other
marks.
10. When the timer
beeps, place the vial into
the cell adapter.
11. Touch Read.
Results will appear in
mg/L PO
4
3–
.
Interfering Substance Interference Levels and Treatments
Aluminum Greater than 200 mg/L
Arsenate All levels
Chromium Greater than 100 mg/L
Copper Greater than 10 mg/L
Iron Greater than 100 mg/L
Nickel Greater than 300 mg/L
Silica Greater than 50 mg/L
Zero
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