Nitrogen content of solid samples using Kjeldahl method

Determination of nitrogen in solid samples using the Kjeldahl method. The measurement is suitable for solid samples such as plant biomass-based materials, soil, soil improvers, and other solid materials that contain organic nitrogen.

Results are given as g/kg (dry basis).

Suitable sample matrices
Solid biomass, soil, soil improvers
Required sample quantity
3 g (dry and grinded)
Typical turnaround time
3 weeks after receiving the samples
Detection limit
0.2 g/kg (uncertainty 12 %)
Available quality systems
Accredited test method


Price per sample (Excl. VAT):
114 €

We also charge a 97 € service fee per order.

Large batches of samples are eligible for discounts.

Questions? We're happy to help.

Questions? We're happy to help.

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