Phosphate 45

NANOCOLOR Ortho Phosphate and Total Phosphate 45

Phosphate 45

Photometric determination using phosphate test kits

DIN method: ammonium molybdate reacts with orthophosphate ions to form phosphomolybdic acid. This is reduced to molybdenum blue. For the determination of total phosphate, an acidic oxidation at 100 – 120 °C must precede to detect poly- and organic phosphates. (Reaction basis according to DIN EN ISO 6878-D11).


Data and ordering information (985-055)

Cat No. 985 055
Type tube tests 0 - 55
Range 5.0 - 50.0 mg/L P (PO4-P)
15 - 150 mg/L PO4 3-
Sufficient for 20 tests
Shelf life at least 1 year
Sea water suitability yes (ortho-P)


Occasional precipitations after the digestion can be filtered off with membrane filtration kit 0.45 µm (REF 916 50).

In case of a high content of organic matter and/or organically bound phosphorus, we recommend digestion with NANOCOLOR® NanOx Metal (REF 918 978).
For the full range of Test Kits for Phosphate, please see also Phosphate 1 Phosphate 5 Phosphate 15 and Phosphate 50


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