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Phosphate Test

photometric, 0.5-30.0 mg/L (PO4-P), 1.5-92.0 mg/L (PO43-), 1.1-68.7 mg/L (P2O5), Spectroquant®

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product line


Quality Level


sufficient for 400 tests

specific analyte(s)


measuring range

0.5-30.0 mg/L (PO4-P)
1.1-68.7 mg/L (P2O5)
1.5-92.0 mg/L (PO43-)


photometry: suitable


for use with Spectroquant® Move 100
for use with Spectroquant® Nova 60 A
for use with Spectroquant® Prove 100
for use with Spectroquant® Prove 300
for use with Spectroquant® Prove 600

detection method

photometric (Vanadato-molybdate)

storage temp.


General description

(o-phosphate) Method: photometric, VM 0.5 - 30.0 mg/l PO₄-P 1.5 - 92.0 mg/l PO₄³⁻ 1.1 - 68.7 mg/l P₂O₅ Spectroquant®
The method is analogous to APHA 4500-P C.
This Spectroquant® Reagent Test is especially designed for the analysis of processes water. In order to avoid long downtimes and intensive maintenance costs of processes water systems a precisely adjusted level of phosphate in the water is paramount to ensure water pipes are protected and corrosion is limited to a minimum.
The Spectroquant® Reagent Test Kits contain highly stable, ready-to-use reagent mixtures to perform the analysis according to the procedure described in the accompanying instruction leaflet .
All our Cell and Reagent Test Kits are equipped with the unique Live ID (2D barcode) which allows seamless method recognition and contains essential information such as lot number, expiry date, and automatic calibration updates.


  • Environmental Monitoring: Phosphate tests are extensively used in environmental monitoring to assess the levels of phosphate in water bodies. These tests help in evaluating the impact of agricultural runoff, industrial discharge, and wastewater treatment on water quality. Recent studies have focused on using selective colorimetric nano-sensing solutions to determine phosphate ions in drinking water samples, highlighting their importance in ensuring safe and clean water supplies (Salem and Draz, International Journal of Environmental Analytical Chemistry, 2020).

Legal Information

SPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany



Signal Word


Hazard Statements

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class Code

8B - Non-combustible, corrosive hazardous materials



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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