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Velp offer a wide range of distillation units designed to give every unique customer a solution for their Kjeldahl analysis application.
The Kjeldahl distillation unit UDK 129 is an 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.
This distillation unit (UDK 129) runs automatically, after setting sodium hydroxide addition and distillation time using the LCD display in order to get reliable and accurate results. The high-precision pumps ensure constant precise dosing of reagents and the cooling water is automatically stopped during pauses, thus cutting down on its consumption.
UDK 129 includes many features that ensure efficient and reliable distillation. Ensuring the highest safety standards, the UDK 129 provides maximum protection to the operator: the use of an innovative system allows the insertion of the test tube in complete safety and the use of test tubes of different sizes.
VELP has developed and patented the innovative titanium condenser able to ensure high performance and considerable water savings (from 0.5 l/min at 15 °C – 1 l/min at 30 °C) with minimum maintenance. The titanium condenser guarantees that distillate temperature always stays below the safe threshold value (35 °C), without nitrogen loss.
The steam generator used by UDK Kjeldahl distillation units offers unique performance, being a patented solution. A thermostat ensures the correct functioning of the steam generator, a safety thermostat eliminates risks for the operator and guarantees safe working conditions.
The high level of precision and accuracy ensures correct and detailed results without any leaks even after intensive use.
The semi-automatic Kjeldahl distillation unit UDK 139 runs automatically, after setting distillation time, sodium hydroxide and water addition and steam generation output level between 10 and 100% using the innovative 3.5” colour touch screen. The high-precision pumps ensure constant accurate dosing of reagents.
The Kjeldahl distillation unit UDK 139 combines exceptional value-for-money with reliability and superior performance. Analysis times are reduced due to application optimization and the option to select up to 10 work programs.
The VELP UDK 139 Semi-Automatic Kjeldahl distillation unit has 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.
VELP has developed and patented the innovative titanium condenser able to ensure high performance and considerable water savings (from 0.5 l/min at 15 °C – 1 l/min at 30 °C) with minimum maintenance. The titanium condenser guarantees that distillate temperature always stays below the safe threshold value (35 °C), without nitrogen loss.
The steam generator used by UDK Kjeldahl distillation units offers unique performance, being a patented solution. A thermostat ensures the correct functioning of the steam generator, a safety thermostat eliminates risks for the operator and guarantees safe working conditions.
VELP’s fully automatic Kjeldahl distillation unit, the UDK 149 with external titrator connection, is 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.
The Kjeldahl distillation unit UDK 149 can be connected to several models of external potentiometric titrators for direct output of the final result and offering choice and versatility to the user. This distillation unit enables the final result to be obtained directly with a substantial saving of time. All the parameters of distillation and titration phases are stored in the method with the advantage of time saving.
The high-precision pumps ensure constant accurate dosing of reagents. All the parameters concerning distillation and titration phases are easily to program and are stored in the archive on board the instrument, to be then downloaded via USB or directly to PC for maximum management flexibility.
VELP has developed and patented the innovative titanium condenser able to ensure high performance and considerable water savings (from 0.5 l/min at 15 °C – 1 l/min at 30 °C) with minimum maintenance. The titanium condenser guarantees that distillate temperature always stays below the safe threshold value (35 °C), without nitrogen loss.
The steam generator used by UDK Kjeldahl distillation units offers unique performance, being a patented solution. A thermostat ensures the correct functioning of the steam generator, a safety thermostat eliminates risks for the operator and guarantees safe working conditions.
The high level of precision and accuracy ensures correct and detailed results without any leaks even after intensive use.
The VELP UDK 159 Automatic Kjeldahl Analyser is fully automatic (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.
Automatic addition of all the reagents involved (sodium hydroxide, water, boric acid, titrant solution) with low level warning simplifies the routine activity whilst the possibility to set the steam output from 10% to 100% enlarges the application range of UDK 159. Automatically the unit will perform distillation and titration.
The possibility to set the steam output from 10% to 100% makes the instrument highly recommended for a wide range of applications, including the most specific, which require special parameters. UDK 159 is ideal for reliable determination of ammoniacal nitrogen, protein nitrogen (Kjeldahl), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.
At the end of the analysis, all the residues can be aspirated automatically, both for distillation and titration.
VELP has developed and patented the innovative titanium condenser able to ensure high performance and considerable water savings (from 0.5 l/min at 15 °C – 1 l/min at 30 °C) with minimum maintenance. The titanium condenser guarantees that distillate temperature always stays below the safe threshold value (35 °C), without nitrogen loss.
The steam generator used by UDK Kjeldahl distillation units offers unique performance, being a patented solution. A thermostat ensures the correct functioning of the steam generator, a safety thermostat eliminates risks for the operator and guarantees safe working conditions.
The high level of precision and accuracy ensures correct and detailed results without any leaks even after intensive use.
The UDK 169 Automatic Kjeldahl Analyser is fully automatic (Distillation unit + integrated colorimetric titrator) with connection to autosampler, for high sample throughput, maximum flexibility and unattended operation.
The Kjeldahl distillation and titration system offer great performance and the maximum in terms of safety for the user. Automatic addition of all the reagents involved with low level warning, simplifies the routine activity, automatically the unit will perform distillation and titration.
The possibility to set the steam output from 10% to 100% makes the instrument highly recommended for a wide range of applications, including the most specific, which require special parameters. UDK 169 is ideal for reliable determination of ammoniacal nitrogen, protein nitrogen (Kjeldahl), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.
At the end of the analysis, all the residues can be aspirated automatically, both for distillation and titration.
The VELP UDK 169 can be used either alone or in combination with the AutoKjel autosampler, for a highly productive system capable of autonomously processing up to 24 samples with standard test tubes (250 ml) or 21 Jumbo test tubes (400 ml).
Sample tubes are taken from the carousel and fed directly into UDK 169 for further processing and reliable results, allowing the user to operate in complete safety and with extreme ease, without requiring an attendant.
Both the UDK 169 & AutoKjel Kjeldahl analyser have been developed for continuous operation, providing the maximum sample throughput and data processing automation.
VELP has developed and patented the innovative titanium condenser able to ensure high performance and considerable water savings (from 0.5 l/min at 15 °C – 1 l/min at 30 °C) with minimum maintenance. The titanium condenser guarantees that distillate temperature always stays below the safe threshold value (35 °C), without nitrogen loss.
The steam generator used by UDK Kjeldahl distillation units offers unique performance, being a patented solution. A thermostat ensures the correct functioning of the steam generator, a safety thermostat eliminates risks for the operator and guarantees safe working conditions.
The high level of precision and accuracy ensures correct and detailed results without any leaks even after intensive use.
UDK Series complies with many official methods for different applications such as the determination of ammoniacal nitrogen, protein determination, nitrogen content (Kjeldahl or direct alkaline distillation), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, sulphur, cyanides and alcohol content. A short list of the most common samples with the corresponding references follows, but many others can be tested according to official methods (AOAC, ISO, DIN, EPA, AACC etc.).
Nitrogen / Protein on Food&Feed Samples
Nitrogen in other samples
Other applications
Nitrogen / Protein on Food&Feed Samples
Consultation – Do you need further information?
Then please contact us by e-mail or telephone!
