Analizor Nitrogen / Proteina

Specificatii tehnice

• Construit conform TEMS (economisiti: timp, energie, bani si spatiu)
• Complet automat, controlat direct prin PC utilizand programul soft-ware DUMA-Soft
• Metode de analiza pre-instalate cat si diferitele curbe de calibrare pentru analize optime
• Analizele pot fi reintroduse din baza de date si salvate in diferite formate (conform LIMS)si printate
• Programul de soft permite introducerii valorile obtinute direct de la o balanta
• Reziduuri minime
• Consumabile minime, costuri reduse de operare
• Detecteaza limitele scazute / 0.003 mg N
• Repetabilitate < 0.5% RSD; conform standardul EDTA

Date tehnice

• Determina N conform metoda DUMAS
• Durata de analiza: 3..4 minute
• Tip detector: TCD autocalibrare
• greutate maxima de proba: 1 gram
• Capacitate autosampler: 4 discuri x 30 pozitii fiecare
• Reproductibilitate: < 0.5% for EDTA standards (9.57%N)
• Recuperare: > 99.5%
• Limita de detectie: 0.003 mg / nitrogen
• Heliu (He): 2 bar / puritate: 99.999% (grad 5.0)
• Oxigen (O2): 2.5 bar / puritate: 99.999% (grad 5.0)
• Aer comprimat sau azot (N2): 3 bar / puritate: 99.6 % (ulei sau apa)
• Interfeta: USB si RS232
• Putere: 1400 W
• Alimentare: 230 V / 50 - 60 Hz
• Dimensiuni: 655x410x510H mm (H 690 mm cu autosampler)
• Greutate: 54 kg

Sistemul se livreaza impreuna cu:

• Program Soft-ware DUMA-Soft
• Kit de pornire pentru 1000 de analize
• Cablu RS232 pentru balanta / imprimanta
• Cablu USB / 5mt; pentru conectarea la PC
• Autosampler cu 1 disc (optional 2, 3 sau 4 discuri

Nitrogen / Protein Analyzers

NDA is the innovative VELP Scientifica solution for nitrogen / protein determination according to the Dumas combustion method for testing both solid and liquid samples

The most accurate & sensitive nitrogen & protein determination technique
Instantaneous results – no long delays
Ecologically friendly – no chemicals used, less residues & waste
Conformity with multiple standards protocols
AOAC, ISO, AACC, AOCS, ASBC etc.

Dumas analysis method

- Starts with a combustion stage to burn the sample
- Obtains elemental compounds
- Water is removed by a first physical trap (DriStep), positioned after the combustion
- Then by a second chemical trap
- Between the two, the elemental substances pass through a reduction furnace
- The auto-regenerative CO2 adsorbers let pass only the elemental nitrogen that is detected by the LoGas innovative; Thermal Conductivity Detector (TCD) with no requirement for a reference gas

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
Interfaces: USB; RS232
Power: 1400 W
Power supply: 230 V / 50 - 60 Hz
Weight: 54 kg
Dimensions (WxHxD): 655x510x410 mm (H 690 mm with autosampler)