Kjel Line
Meeting the highest demands in nitrogen determination
BUCHI’s latest steam distillation units are extremely accurate, ensure the sustainable use of resources and offer maximal safety during operation. The instruments have been designed to fit your individual needs and to enable the highest performance in the most convenient way.
Features
For more convenience and easier sample handling, we offer configurations with sample tube and receiver waste aspiration. This saves time and allows for smooth operation of the instrument.
Thanks to the AutoDist function, measurements are unaffected by temperature differences within the device. This function recognizes the start of the condensation process and adjusts the distillation start time automatically in the individual measurement. This is achieved with a built-in temperature sensor within the condensate vessel and leads to more reproducible results.
Automated titration is key to achieving the highest performance possible in Kjeldahl protein determination. Titration dosage, as well as endpoint recognition via suitable electrodes, is carried out automatically. This allows for minimum user interaction and high throughput at the same time.
The cooling water control automatically saves water by intelligent flow limitation. Once steam distillation starts, water begins to flow through the condenser and the distillate is collected. Before and after distillation, the device automatically closes the cooling water valve. This feature saves approximately 20 % of water during determinations and eliminates concerns regarding the water supply.
The OnLevel sensor is available for all configurations where no titration vessel is mounted. The sensor stops the distillation automatically after a defined condensate volume is reached. The sensor can be easily set and adjusted manually via a magnetic backplate. Obtain reproducible condensate volumes independent of the system lifetime.
The reaction detection sensor is available for MultiKjel configurations. It can save up to 30 % of NaOH reagent solution for the alkalization process so that you can work more cost-efficiently and environmentally friendly.
With our versatile components, you can easily upgrade and automate your system for highest convenience. All parts can be chosen separately and can be combined one after another. The modular design allows you to achieve an optimal combination of features to suit your individual needs. In this way, you receive the optimum combination of features and peripherals according to your needs.
The intuitive touch screen provides fast feedback and enables easy process handling
Glass and plastic splash protectors are available. Glass splash protectors enable you to monitor the process to support method development and optimization. Plastic splash protectors are more robust and durable. Depending on the application, different splash protector variants enable the best performance
The Kjel Line instruments reduce user exposure to a minimum thanks to innovative sensor technology. Safety sensors monitor cooling water flow, steam generator pressure and if the sample tube is put correctly in place. Tank level sensors detect water, waste and reagent levels. The safety shields are fully transparent and equipped with secure control sensors. If the safety shields are opened during operation, the process is stopped automatically. The steam power is adjustable (10 - 100 %) and steam ramps are programmable to handle foaming samples.
In laboratories, deviations of the supply voltage are possible within a range of up to 10 % of the original value. This can potentially affect the steam power output. In order to avoid these deviations, a voltage stabilizer is integrated to maintain the required supply voltage. This enhances measurement accuracy and ensures highest reproducibility for every result.
Compare the Kjel Line
Related Parts & Accessories
Downloads
- Operation Manual K-365 Kjel Line en(pdf)
- Technical Data Sheet K-365 Kjel Line(pdf)
- Solution Brochure Digestion and Distillation en(pdf)
- Product Brochure Kjel Line en(pdf)
- Solution Brochure Environmental Analysis en(pdf)
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Applications
The best practice to analyze your samples
Feed / Agricultural Products
Mixed and finished feed (ruminant, swine, poultry), ingredients such as oil seed meals, cereals, hulls & bran. Protein, Total Kjeldahl Nitrogen (TKN), Non-Protein Nitrogen (NPN) Protein: AOAC 2001.11 / 920.87 / 930.25 / 945.39 / 950.09 / 979.09 / 981.10 / ISO 1656 / 3188 / 20483
Pharma / Biotechnology
Pharma / BiotechnologyRaw materials, APIs, excipients, vaccines ointments, natural products, nutraceuticals, blood plasma products, toxins, cosmetics, biopharmaceuticals Ammonia, Total Kjeldahl Nitrogen (TKN), urea Ammonia, Total Kjeldahl Nitrogen (TKN), ureaNitrogen: USP 461 / Ph.Eur. 2.5.9. / AOAC 960.52 Protein: Ph.Eur. 2.5.33. Method 7.
Environmental Samples
Water samples, soil samples, waste water, fly ash Ammonia, Total Kjeldahl Nitrogen (TKN), nitrate/nitrite Nitrate/nitrite: DIN 38409 Part 28, DIN CEN/TS 15476 Nitrogen: DIN EN 13342 / 38409 Part 28
Chemicals / Fertilizers
Basic chemicals, petrochemicals and specialty chemicals, fertilizers, cosmetics, lubricant oils Ammonia, Total Kjeldahl Nitrogen (TKN), nitrate/nitrite Nitrate/nitrite: DIN 38409 Part 28, DIN CEN/TS 15476 Nitrogen: AOAC 955.04 / 981.10 / DIN EN 15750
Food / Beverages
Cereals, dairy products, meat, pastry, seafood, ready meals, plant-based food Protein, Total Kjeldahl Nitrogen (TKN), Non-Protein Nitrogen (NPN), Total Volatile Basic Nitrogen (TVBN), casein, hydroxyproline Protein: AOAC 2001.11 / 920.53 / 920.87 / 925.31 / 928.08 / 930.25 / 950.48 / 979.09 / 981.10 / 991.20 / ISO 937 / 3188 / 8968-3