DUMAS Nitrogen/Protein Analyzer, NDA 702

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%
CARRIER GAS:	Helium or Argon
DETECTION LIMIT:	0.001 mg N, with Helium 0.01 mg N, with Argon
CARRIER GAS (HE/AR):	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)
CARRIER GAS (HE/AR) 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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