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VELP Kjeldahl Systems

https://www.velp.com/en-ww/kjeldahl-apparatus.aspx Service > International Standard > The Kjeldahl Method > VELP Kjeldahl Systems VELP Kjeldahl Systems First VELP Scientifica Kjeldahl apparatus On the left, the first Series of DK 20 and DK 6, Keldahl digestion units; on the right, the first UDK 126, Kjeldahl distillation unit, semi-automated Today, various [...]

The Digestion Phase

https://www.velp.com/en-ww/kjeldahl-digestion.aspxVapors that escape from the tubes are aspirated through the suction cap by a JP recirculating water vacuum pump and eliminated in an SMS scrubber. ... Add the sample, acid and catalyst in the test tube Place the sample into the most suitable VELP glass test tube along with 12 - 20 ml of concentrated sulfuric acid , as specified in the [...]

HOW TO OPTIMIZE TOTAL KJELDAHL NITROGEN DETERMINATION IN WATER AND WASTEWATER

https://www.velp.com/en-ww/how-to-optimize-total-kjeldahl-nitrogen-determination-in-water-and-wastewater-v1.aspx News > Webinars > HOW TO OPTIMIZE TOTAL KJELDAHL NITROGEN DETERMINATION IN WATER AND WASTEWATER HOW TO OPTIMIZE TOTAL KJELDAHL NITROGEN DETERMINATION IN WATER AND WASTEWATER 07/04/2022 Connect with the VELP Academy and learn how to achieve accurate results and optimize your Kjeldahl analysis for low Nitrogen determination by reducing time, [...]

Distillation and Titration

https://www.velp.com/en-ww/kjeldahl-distillation.aspxUsing the Kjeldahl distillation, nitrites and nitrates are not detected. ... The Distillation Steps Steam Distillation Add distilled or deionized water to the test tube containing the digested sample to dilute it (automatically on UDK 139 & UDK 149 Kjeldahl Distillation Units and UDK 159 Automatic Kjeldahl Analyzer). ... [...]

COD Analysis, now also with DKL 20 digestion unit

https://www.velp.com/en-ww/cod-analysis-now-also-with-dkl-20-digestion-unit.aspxIt is typically used for lowering and raising automatically a sample rack with twenty standard Kjeldahl test tubes (Ø 42 mm, 250 ml), but it can be used even for other “tougher” applications.

TOTAL KJELDAHL NITROGEN TO THE NEXT LEVEL: HOW LABORATORIES CAN BENEFIT FROM AUTOMATION AND INCREASE THEIR OVERALL EFFICIENCY

https://www.velp.com/en-ww/total-kjeldahl-nitrogen-to-the-next-level-how-laboratories-can-benefit-from-automation-and-increase-their-overall-efficiency.aspx News > Highlights > TOTAL KJELDAHL NITROGEN TO THE NEXT LEVEL: HOW LABORATORIES CAN BENEFIT FROM AUTOMATION AND INCREASE THEIR OVERALL EFFICIENCY TOTAL KJELDAHL NITROGEN TO THE NEXT LEVEL: HOW LABORATORIES CAN BENEFIT FROM AUTOMATION AND INCREASE THEIR OVERALL EFFICIENCY 09/05/2023 The need to increase efficiency, reduce errors, and improve data quality [...]

THE NEW SEMI-AUTOMATIC DK SERIES DIGESTERS: ENHANCED PERFORMANCE, SAME RELIABILITY

https://www.velp.com/en-ww/dk-series-kjeldahl-digestion-units-v1.aspxAll the flexibility you need with the new configurations The DK Series of semi-automatic digesters is available in the following configurations: DK 6 (6 positions with 250 ml test tubes, Ø 42 mm) DK 6/48 (6 positions with 300 ml tubes, Ø 48 mm) DK 8 (8 positions with 250 ml test tubes, Ø 42 mm) DK 20 (20 positions with [...]

STEAM DISTILLATION FOR FAST AND EASY ALCOHOLIC STRENGTH DETERMINATION

https://www.velp.com/en-ww/steam-distillation-for-fast-and-easy-alcoholic-strength-determination.aspxAs a general rule, distill your sample in 7-9 minutes Use your density meter or pycnometer on the distillate to measure alcohol content, even on complex liquors Top performing Distillation Units for fast and easy alcoholic content analysis Developed for the Kjeldahl method, automated steam distillation instruments are ideal to perform alcoholic strength determination in [...]

THE NEW UDK DISTILLATION UNITS: 6 REASONS WHY THEY MAKE A DIFFERENCE

https://www.velp.com/en-ww/the-new-udk-distillation-units-6-reasons-why-they-make-a-difference-in-the-lab.aspxDiscover the 6 reasons why choosing the new VELP UDK Distillation Units for your Kjeldahl nitrogen analysis, TKN, proteins, ammoniacal nitrogen, nitric nitrogen (Devarda), TVBN, sulfites, phenols, volatile acids, cyanides, and alcohol content. 1. ... The automatic Kjeldahl analyzer UDK 159 and 169 are supplied with an integrated colorimetric [...]