FOSS · Kjeldahl: protein, digestion, and scrubbers

Kjeltec™ 9 Analyser

Automated Kjeldahl distillation, colorimetric titration and calculation module. Digestion is performed separately in a Digestor; a 20- or 60-sample autosampler is available for batch work.

Best suited for

Large laboratories with high sample volume and variation

Capabilities and controlled parameters

Kjeldahl method: GOST 23327-98, 34454-2018, 25011-2017, 10846-91 and 13496.4-2019 by matrix
Automated distillation, colorimetric titration and calculation; digestion remains separate
Manufacturer range 0.1–210 mg N; recovery >99.5% at 1–200 mg N
3.5 minutes at 30 mg N and 6.5 minutes at 200 mg N according to FOSS
20- or 60-sample autosampler; up to 240 samples per 24 hours under stated conditions
Sample registration, audit trail and digital data transfer

FOSS

Go deeper

A selection of materials to understand the method, compare instruments and choose the right lab configuration.

Reference analysisThe Kjeldahl method: nitrogen and protein determination, standards and the FOSS Kjeltec 9 workflowRead article Analyser selectionHow to choose a FOSS analyser for dairy, grain, feed, meat and cheeseRead article

LabLog

Implementation considerations

The final configuration depends on sample types, parameter ranges, throughput, accuracy requirements, and existing reference methods. Before proposing equipment, LabLog clarifies these factors and defines the supply scope, training, and method-verification plan.

How LabLog supports the project

01Capture requirements and compare suitable methods
02Configure the instrument, calibrations, and consumables
03Arrange official supply and commissioning
04Train operators in sample preparation and daily operation
05Provide service communication and repeat consumable supply