DUMATHERM®

DUMATHERM®

The DUMATHERM® uses all the advantages of the Dumas combustion method and enables labs to analyze a wide range of samples including those containing saline, high concentrations of water, low concentrations of nitrogen, or highly-concentrated samples.

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SKU14-0015


Highly efficient combustion analyzer for nitrogen and protein determination 

  • Overview

    The DUMATHERM® is an efficient combustion analyzer for nitrogen and protein determination according to the Dumas combustion method. With a compact design, the instrument saves bench space and allows labs to analyze a wide range of samples with varying sample concentrations.

     The innovative design of the combustion analyzer's furnace chamber, in combination with the direct analysis of all resulting gases, delivers accurate and dependable results. The Dumas method serves as an easier-to-use, more efficient alternative to traditional Kjeldahl methods, which can take hours to perform. DUMATHERM® reduces analysis time to 3 minutes or less, 98% time savings compared to Vapodest.

    • Accurate results within 3 min
    • Residue-free combustion & Fully automated - rapidly analyze a variety of sample matrices including liquids
    • Process up to 64 samples per run
    • Completely controlled by DUMATHERM® Manager, and can be operated safely from any location without an extractor
    • Flexible – Use argon or helium as a carrier gas, depending upon the sample
    • Meets requirements for standard methods including AOAC, AOCS, ASBC, AACC, ASTM, DIN, etc.
    • User-friendly, ISO 17025 compliant software

    Software Controlled 

    DUMATHERM® Manager, the system’s PC-based, user-friendly software controls the entire analysis. With powerful diagnostics, documentation capabilities, multiple language options, data transfer capability to and from a LIMS, traceability of all analysis data, and easy set-up make the analyzer simple to operate and frees the user’s time for other tasks.

    Rapid, Precise, and Versatile 

    Run up to 64 individual samples automatically, and overnight! The DUMATHERM® does not require an extractor and can be flexibly employed on a stand-alone basis in any location. Heating time is just 30 minutes and only 3 minutes are required for an individual analysis run. 

    Flexible, Efficient, and Cost-Effective

    The DUMATHERM® combustion analyzer can analyze almost all types of samples -- solid or liquid! And with the use of our helium technology and total gas analysis, the results are precisely traced. The DUMATHERM combustion analyzer's detection limit is 0.003 mg nitrogen and samples weighing up to 1 g can be readily processed.

    If you're interested in Kjeldahl analysis, you may be interested in the VAPODEST® Kjeldahl Steam Distillation systems. The VAPODEST series offers powerful analytics, accurate results, and efficient, clean operation in one easy-to-use system. 

  • Specifications
    General Specifications  
    Sample size 0,5 mg bis 1 g
    Sample capacity 1 - 64 samples
    Analysis time 3 - 5 min, depending on the sample type and sample size
    Recovery rate > 99,5 %
    Detection limits with Helium 0,003 - 50 mg N absolut
    Detection limit with Argon 0,1 - 50 mg N absolut
    Standard deviation < 0,5 % (with standard sample preparation)
    Operation via PC* with DUMATHERM®-Manager
    Temperature range Combustion furnace 400 - 1.100 °C
    Temperature range Reduction furnace 400 - 1.100 °C
    Temperature range Desorption furnace  50 - 350 °C
    Required gases and quality
    • Helium (alternative Argon), quality grade 5.0 (99,999 %)
    • Oxygen, quality grade 5,0 (99.999 %)
    • Compressed air or nitrogen, quality grade 2.6 (99.6 %, oil- and water free)
    Gas installation Pressure regulators for high purity gas; 1/4&" cylindric thread (female)
    Inlet pressure helium 3 - 6 bar
    Inlet pressure oxygen 3 - 6 bar
    Inlet pressure compr. air / nitrogen 3 - 6 bar 
    Ambient temperature 15 °C < t < 35 °C
    Nominal voltage 230 VAC
    Dimensions W / D / H 870 x 710 x 860 mm (closed) - 1108 x 710 x 1118 (doors and protective hood opened)
    Weight ca. 85 kg
    Nominal wattage DUMATHERM® 1380 W
    Nominal wattage autosampler 90 W
    Current max. 6 A
    Wanted digital balance Optional, reading precision min. 0,1 mg

     

  • Video

    DUMATHERM®

    The DUMATHERM® uses all the advantages of the Dumas combustion method and enables labs to analyze a wide range of samples including those containing saline, high concentrations of water, low concentrations of nitrogen, or highly-concentrated samples.

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