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Nitrogen (total) Cell Test

photometric, 0.5-15.0 mg/L (N), Spectroquant®

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product line


Quality Level


sufficient for 25 tests

specific analyte(s)


measuring range

0.5-15.0 mg/L (N)


photometry: suitable


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 (Koroleff digestion, 2,6-dimethylphenol)

storage temp.


General description

Method: photometric, DMP 0.5 - 15.0 mg/l N Spectroquant®

The method corresponds to ISO 23697-1, a norm standardizing the use of this "small-scale sealed tube method" for this important parameter. The digestion is analogous to EN ISO 11905-1. The determination of nitrate is analogous to DIN 38405-9.

This Spectroquant® Nitrogen (total) Cell Test allows the reliable determination of total nitrogen in water samples. Total nitrogen is the sum of total Kjeldahl nitrogen (organic nitrogen and ammonia), nitrate, and nitrite. Prior to the determination the sample needs to be digested in order to transfer organic and inorganic nitrogen containing compounds into nitrate that further reacts to a photometrically analyzable compound.

The Spectroquant® Cell Tests come with prefilled 16 mm round cells and all the required reagents to perform the analysis according to the instruction leaflet provided.

All Spectroquant® 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.

Legal Information

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

Signal Word


Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Met. Corr. 1 - Ox. Liq. 3 - Resp. Sens. 1 - Skin Corr. 1A - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

5.1B - Oxidizing hazardous materials



Flash Point(F)

84.2 °F

Flash Point(C)

29 °C

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Total Nitrogen Analysis kit offers a fast, accurate, and cost-effective method for water and wastewater testing.

Learn how water impurities can impact the Kjeldahl nitrogen method. Get recommendations for accurate Kjeldahl analysis and total Kjeldahl nitrogen (TKN) tests. Select the optimal water purification system.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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