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Phosphate Test

photometric, 1.0-100.0 mg/L (PO4-P), 3-307 mg/L (PO43-), 2-229 mg/L (P2O5), Spectroquant®

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product line


Quality Level


sufficient for 100 tests

specific analyte(s)


measuring range

1.0-100.0 mg/L (PO4-P)
2-229 mg/L (P2O5)
3-307 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 (Phosphomolybdenum blue)

storage temp.


General description

(o-phosphate) Method: photometric, PMB 1.0 - 100.0 mg/l PO₄-P 3 - 307 mg/l PO₄³⁻ 2 - 229 mg/l P₂O₅ Spectroquant®
The method is analogous to EPA 365.2+3, APHA 4500-P E, and DIN EN ISO 6878.
The Spectroquant® Phosphate Reagent Test allows the accurate quantification of phosphate. Elevated levels of phosphate might lead to eutrophication of water bodies, which is a risk to the environment. Therefore, the concentration of phosphate in drinking water and wastewater is regulated in many countries.
Further applications are the determination of phosphate in foods & beverages (e.g. beer) and in environmental and agricultural samples (e.g. soil).
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.


  • Effects of Two Remineralizing Agents in Combination with Er:YAG and CO(2) Laser Irradiation on Microhardness of Demineralized Enamel: This study highlights the use of phosphate tests in dental research, specifically in measuring the efficacy of remineralizing agents combined with laser treatment to enhance enamel hardness, which is crucial for dental health and preventive care (Mapar M et al., 2024).

  • Zinc and Silicon Nano-Fertilizers Influence Ionomic and Metabolite Profiles in Maize to Overcome Salt Stress: This research utilizes phosphate tests in the study of plant physiology, specifically to gauge the efficacy of nano-fertilizers in enhancing phosphate uptake under salt stress conditions, providing insights into sustainable agricultural practices (Shoukat A et al., 2024).

  • Investigation of Mechanical Properties of Polymer-Infiltrated Tetrapodal Zinc Oxide in Different Variants: Applies phosphate testing in the field of materials science to assess the interaction of phosphate with novel composite materials, thereby informing the development of more durable and efficient materials for various industrial applications (Scherer F et al., 2024).

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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