Buchi Kjel Line

The BUCHI Kjel Line is a comprehensive series of Kjeldahl distillation instruments dedicated to fast, precise nitrogen and protein determination according to the reference Kjeldahl method. Combining a powerful steam generator, temperature-compensated distillation and optional automated titration, the Kjel Line delivers high recovery, safe operation and full traceability. Three model tiers — EasyKjel, BasicKjel and MultiKjel — cover requirements from routine QC laboratories to demanding food, environmental and feed testing facilities.

Key specifications:

• Reference Kjeldahl distillation method for nitrogen and protein determination

• Adjustable steam power: 10–100 % with programmable steam ramps

• AutoDist function — temperature-compensated automatic distillation start

• Automatic endpoint recognition for distillation

• Optional integrated titration (colorimetric or potentiometric)

• Compatible with 100, 300 and 500 mL BUCHI sample tubes

• Determines Total Kjeldahl Nitrogen (TKN), Total Volatile Basic Nitrogen (TVBN), nitrate and nitrite

Available models:

• EasyKjel — entry-level manual Kjeldahl distillation unit

• BasicKjel — semi-automated distillation with programmable methods and reagent dosing

• MultiKjel — fully automated distillation with integrated titration and data management

Applications:

• Protein content in dairy, meat, cereals, flour and beverages

• TKN measurements in water, wastewater and soil for environmental monitoring

• Nitrogen content in fertilizers and agrochemicals

• TVBN determination for fish, seafood and meat freshness assessment

• Feed quality and raw material control in agriculture