velpKjeldahl Distillation Units

The distillation unit is used to perform nitrogen analysis and protein determination according to Kjeldahl method in food&feed industry and other applications in environmental and chemical industries after having digested the sample accurately.

    • A choice of five units with varied levels of automation
    • Fourth generation based on extensive experience
    • Unparalleled technology along with premium materials for high-quality products
    • Extremely reliable quantification of nitrogen content and protein determination
    • Operate across a wide variety of samples
    • TEMS™ technology with major advantages for ecology and economy
    • Conformity with multiple standards protocols
      AOAC, ISO, EPA, DIN etc.

    • VELP also offers consumables accurate and precise analysis

  • Kjeldahl analysis method
    - Add distilled / deionized water to the digested sample
    This dilutes the sample
    In this way it’s easier to detect all the ammonia
    - Separate the nitrogen from the digested mixture by steam distilling
    Extracts ammonia from the alkaline solution
    - Raise the pH of the digested mixture using sodium hydroxide
    Converts NH4+ (in solid format) into NH3 (gaseous)
    This will be detected with titration
    - Trap the distilled vapors in a dedicated solution of boric acid
    Traps all the nitrogen, eliminating the risk of loss

 

Brochure & Leaflet

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extraction (Soxhlet, Randall), Fiber Analysis (Weende, Van Soest) and other parameters on food, feed and beverages....
Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser. Can be connected to autosampler, for high sample throughput, maximum flexibility and unattended operation....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser....
Learn more about our fully automatic Kjeldahl distillation unit with patented steam generator and titanium condenser, connectable to external potentiometric titrator of the major brands....
Learn more about our semi-automatic Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about our entry-level Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about the Kjeldahl principle, first described by Johan Kjeldahl over a century ago (1883).

Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!

Protein content of malting barley is important because it affects malting, brewing, and their end products. Discover more on the results obtained with Kjeldahl and Dumas Method...
Learn more about the Nitrogen/protein determination in pasta performed with the VELP UDK and DKL Kjeldahl Analyzers.
The ethylic alcohol, produced during the fermentation, determines the alcoholic strength and it can be measured by volume with our UDK. Learn how to obtain excellent performance with UDK 129....
Nuts are an excellent source of protein and healthy fats; their amounts vary depending on the type of nut.
Peanuts, for example, provide a good source of B vitamins essential for energy, protein metabolism, and the synthesis of red blood cells and their protein content is about 29%.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The properties of water, waste water and sludge vary considerably depending upon their source. For example, in unpolluted waters, low nitrogen levels make it necessary to use large sample volumes. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC, EPA and ISO....
Casein proteins are a family of proteins involved in the production of cheese and fermented milk. They are also extremely important nitrogen compounds in the dairy products production, additives in medicine, and have a technical use in cosmetics, paints and adhesives.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO.
...
Cereals contain between 8-15% of different kinds of proteins such as albumins, globulins, prolamines, gliadins, glutelins and glutenins. Their chemical composition is important not only for nutritional purposes, but also for the bread dough and its process of baking and for economical reason. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and AACC....
Due to the greater demand and consumption of dairy products, protein analysis has become more and more important to ensure food safety, food quality and fairness in international trade. Learn how to obtain excellent performance with DK / DKL and UDK Series, and how to work in accordance with ISO and AOAC....
Protein is a critical nutrient in cattle, pigs, poultry, sheep, horses and pet food diets. It is required for milk production and reproductive tract reconditioning after calving.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The protein fraction includes caseins (80%) and whey proteins (20%) and it is of interest, not only from the nutritional point of view, but also from a technological one. Milk proteins have particular chemical properties which contribute to create typical sensory features, influencing the whole food processing. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO....
22 results page 1 of 3

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.

The distillation unit is used to perform protein/nitrogen analysis according to the traditional Kjeldahl method and for many other applications. Choose among the valuable solutions offered by VELP, from entry-level to the most advanced analyzer....

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.

The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world....
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety, matching EU consumer safety, health or environmental requirements....
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada....

Brochure & Leaflet

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extraction (Soxhlet, Randall), Fiber Analysis (Weende, Van Soest) and other parameters on food, feed and beverages....
Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other applications....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser. Can be connected to autosampler, for high sample throughput, maximum flexibility and unattended operation....
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam generator and titanium condenser....
Learn more about our fully automatic Kjeldahl distillation unit with patented steam generator and titanium condenser, connectable to external potentiometric titrator of the major brands....
Learn more about our semi-automatic Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about our entry-level Kjeldahl distillation unit with patented steam generator and titanium condenser.
Learn more about the Kjeldahl principle, first described by Johan Kjeldahl over a century ago (1883).

Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!

Protein content of malting barley is important because it affects malting, brewing, and their end products. Discover more on the results obtained with Kjeldahl and Dumas Method...
Learn more about the Nitrogen/protein determination in pasta performed with the VELP UDK and DKL Kjeldahl Analyzers.
The ethylic alcohol, produced during the fermentation, determines the alcoholic strength and it can be measured by volume with our UDK. Learn how to obtain excellent performance with UDK 129....
Nuts are an excellent source of protein and healthy fats; their amounts vary depending on the type of nut.
Peanuts, for example, provide a good source of B vitamins essential for energy, protein metabolism, and the synthesis of red blood cells and their protein content is about 29%.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The properties of water, waste water and sludge vary considerably depending upon their source. For example, in unpolluted waters, low nitrogen levels make it necessary to use large sample volumes. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC, EPA and ISO....
Casein proteins are a family of proteins involved in the production of cheese and fermented milk. They are also extremely important nitrogen compounds in the dairy products production, additives in medicine, and have a technical use in cosmetics, paints and adhesives.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO.
...
Cereals contain between 8-15% of different kinds of proteins such as albumins, globulins, prolamines, gliadins, glutelins and glutenins. Their chemical composition is important not only for nutritional purposes, but also for the bread dough and its process of baking and for economical reason. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and AACC....
Due to the greater demand and consumption of dairy products, protein analysis has become more and more important to ensure food safety, food quality and fairness in international trade. Learn how to obtain excellent performance with DK / DKL and UDK Series, and how to work in accordance with ISO and AOAC....
Protein is a critical nutrient in cattle, pigs, poultry, sheep, horses and pet food diets. It is required for milk production and reproductive tract reconditioning after calving.
Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC.
...
The protein fraction includes caseins (80%) and whey proteins (20%) and it is of interest, not only from the nutritional point of view, but also from a technological one. Milk proteins have particular chemical properties which contribute to create typical sensory features, influencing the whole food processing. Learn how to obtain excellent performance with DK / DKL and UDK Series and how to work in accordance with AOAC and ISO....
22 results page 1 of 3

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.

The distillation unit is used to perform protein/nitrogen analysis according to the traditional Kjeldahl method and for many other applications. Choose among the valuable solutions offered by VELP, from entry-level to the most advanced analyzer....

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.

The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world....
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety, matching EU consumer safety, health or environmental requirements....
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada....

Products

UDK 129 Kjeldahl Distillation Unit

Entry-level Kjeldahl distillation unit for your analyses concerning different applications such as determining ammoniacal nitrogen, protein determination, nitrogen content (Kjeldahl or direct alkaline distillation), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.
Read more

UDK 139 Semi-Automatic Kjeldahl Distillation Unit

Semi-automatic Kjeldahl distillation unit for your analyses concerning different applications such as determining ammoniacal nitrogen, protein determination, nitrogen content (Kjeldahl or direct alkaline distillation), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.
Read more

UDK 149 Automatic Kjeldahl Distillation Unit

Fully automatic Kjeldahl distillation unit, with external titrator connection, for your analyses concerning different applications such as determining ammoniacal nitrogen, protein determination, nitrogen content (Kjeldahl or direct alkaline distillation), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.
Read more

UDK 159 Automatic Kjeldahl Analyzer

Fully automatic Kjeldahl Analyzer (distillation unit with integrated colorimetric titrator), for your analyses concerning different applications such as determining ammoniacal nitrogen, protein determination, nitrogen content (Kjeldahl or direct alkaline distillation), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.
Read more

UDK 169 Automatic Kjeldahl Analyzer with AutoKjel Autosampler

Fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator) with connection to autosampler, for high sample throughput, maximum flexibility and unattended operation.
Read more