DUMAS Nitrogen/Protein Analyzer, NDA 701

DUMAS Nitrogen/Protein Analyzer, NDA 701

  • Brand : VELP® SCIENTIFICA
  • The Dumas technique is used for the quantitative determination of nitrogen in chemical substances based on the combustion method first described by the French chemist Jean-Baptiste Dumas.
  • NDA Series provides results in 3-4 minutes with low detection limit (0.001 mgN, with Helium – NDA 702) and an excellent RSD% (<0.5% with EDTA standard), keeping low cost per analysis.

Technical Data

METHOD OF ANALYSIS: Nitrogen determination according to Dumas method (combustion)
DURATION OF ANALYSIS: 3/4 minutes
DETECTOR: Innovative TCD autocalibrating
SAMPLE WEIGHT: max 1g
AUTOSAMPLER CAPACITY: up to 4 discs, 30 positions each
REPRODUCIBILITY (RSD): < 0.5% for EDTA standards (9.57%N)
RECOVERY: > 99.5%
DETECTION LIMIT: 0.003 mg nitrogen
HELIUM (HE): purity 99.999% (grade 5.0)
OXYGEN (O2): purity 99.999% (grade 5.0)
COMPRESSED AIR OR NITROGEN (N2): purity 99.6 % (oil and water free)
HELIUM (HE) PRESSURE: 2 bar
OXYGEN (O2) PRESSURE: 2 bar
CONNECTIVITY Cloud via LAN or Wi-Fi
INTERFACES: USB; RS232
POWER: 1400 W
POWER SUPPLY: 230 V / 50 - 60 Hz
WEIGHT: 54 kg / 119 lb
DIMENSIONS (WXHXD): 655x510x410 mm (H 690 mm with autosampler)
25.8x20.1x16.1 in (H 27.0 in with autosampler)

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