Analytical instruments - VELP Scientifica
VELP Scientifica - Via Stazione, 16 - 20865 Usmate (MB) ITALY - Tel. +39 039 62 88 11 - Fax. +39 039 62 88 120
Analytical instruments - VELP Scientifica
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Kjeldahl 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

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.
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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.
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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.
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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.
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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.
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