New Products

Kjeldahl analysis goes online

New Kjeltec system enhances traceability and efficiency in the laboratory
Kjeldahl analysis goes online
February 11, 2009

Kjeldahl analysis goes online 
Höganäs, Sweden, FOSS announces the Kjeltec™ 8000 series, an innovative new range of solutions for Kjeldahl analysis providing network facilities for improved traceability and features for safer and more cost effective laboratory operations.

The Kjeltec™ range, with a fully automatic Kjeltec 8400 analyser and smaller 8100 & 8200 distillation units, builds on the proven FOSS reputation for safe, high-performance instruments, with innovative features to make laboratory operations simpler and more flexible.

With the top of the range Kjeltec 8400 model, samples can be registered via a PC connected to the instrument. A simple mouse click sends the batch to the analyser. The instrument can also be connected to the laboratory network using software that integrates the instrument into the client’s LIMS system. In this case, sample weights are automatically entered and all the information needed for reporting is in one place.

FOSS product manager Camilla Alvesson said: “The Kjeldahl method is still the primary reference method for protein analysis today and our aim is to bring it up to date with the latest possibilities, for example, with the use of network technology now so commonly used in our daily lives.”
Less chemical handling and water consumption
The new range also provides a raft of facilities for safer and more efficient operations.
A new titration module simplifies change of titrant, removes air, and ensures automatic cleaning of the titration vessel after each batch. Other innovative features include:
• Intelligent water cooling for minimal consumption
• A variable output steam generator providing the flexibility to analyse volatile parameters other than Nitrogen
• A choice of 20 or 60 place auto sampler extending the benefits of automation to large and small organizations alike, even at lower sample throughputs
• Auto sampler options allowing multiple tests to be run with no sample transfer and completely unattended for more than four hours. 
Flexible product range with full support 
All models in the new Kjeltec 8000 series offer ongoing support, a wide choice of validated applications according to official standards and training by experienced local personnel.
The 8200 auto distillation unit can be upgraded to the 8400 Analyser and even to the auto sampler versions. This enables clients to spread their investment over time and increase their analytical capacity to mirror their business growth.
Kjeldahl method and the FOSS Kjeltec series
The Kjeldahl method is the most versatile technique available for nitrogen analysis. In fact, it is the only method that can be used for analysis of nitrogen content in samples with high diversity.
The Kjeltec series is designed to attain the best possible accuracy and precision. It also sets safety standards in Kjeldahl analysis. The FOSS designed colorimetric titration system gives unmatched accuracy and is often the preferred  method when new standards are issued by organizations such as the AOAC, ISO and IDF.
Further information 
Two application notes comprehensively describe the general methodology for nitrogen/protein analysis using Kjeltec systems. These are available from local FOSS representatives.
AN 300: The determination of nitrogen according to Kjeldahl using block digestion and steam distillation.
AN 303: The determination of nitrogen according to direct distillation (DD) using steam distillation.
An updated version of the FOSS publication: Handbook for Kjeldahl Digestion has been issued including the latest technological developments with the method. A copy can be requested.
For more information visit the Kjeltec series website