113
Phosphorus
• Add the content of one packet of HI 93706B-0 Phosphorus
Reagent B (Amino Acid) to the cuvette. Replace the cap
and shake gently until completely dissolved.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively,
wait for 5 minutes and press Read. When the timer ends the meter will perform the reading. The
instrument displays the results in mg/L of phosphorus (P).
• Press or to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of phosphate (PO
4
3
¯) and phosphorus pentoxide
(P
2
O
5
).
• Press or to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Sulfide
Chloride above 150000 mg/L
Calcium above 10000 mg/L as CaCO
3
Magnesium above 40000 mg/L as CaCO
3
Ferrous iron above 100 mg/L
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