Introduction: The Dumas nitrogen method is to determine the nitrogen / crude protein content in the sample by means of high temperature combustion. Compared with the traditional Kjeldahl method, the tedious process of digestion and the use of chemical reagents are avoided. Meanwhile, the analysis time is greatly shortened and the precision is improved, realizing fully automated and 100% recovery of nitrogen in the true sense. DN2000 is China's first commercialized Dumas nitrogen meter launched by Nordtech, breaking the situation that the domestic Dumas nitrogen mainly imported equipment occupies and represents the strong rise of the domestic Dumas nitrogen analyzer. Applications: food and grains, animal feed, dairy products, meat and meat products, soil and fertilizers, automotive aqueous urea, Features: 1 large sample size High up to 1.5 g, optional liquid sample packer seal, the maximum sample size of up to 1.5 ml. 2 Optimized sample combustion conditions Three levels of oxidation using a reduction of three furnace design, to ensure complete combustion of the sample conversion. 3 magnetic control zero blank injection technology Magnetically controlled injection devices completely eliminate the interference of air with the results of the analysis, while effectively avoiding contamination of the injection port during injection. 4 concise experimental principle Instead of re-sampling or shunting the nitrogen produced by the reaction, DN2000 uses all the nitrogen produced by the reaction to be detected. 5 Use CO2 as carrier gas The use of CO2 as a carrier gas greatly reduces the post-maintenance costs of the instrument. Technical Parameters: Analysis Method: Dumas (Dumas method) Correction: Non-linear calibration curve, long-term stability Sample weight: up to 1.5g for solid samples and up to 1.5ml for liquid samples Dynamic measuring range: 0-500 mg N absolute (or 100% N) Detection limit: 20ppm N. Measurement accuracy: 0.5% RSD Calibration: multi-point calibration, with long-term stability, the calibration curve can be stored in the computer Autosampler: 60/80/120 bits optional Required gases: CO2, O2 Instrument control and data processing: Through the computer based on windows system operation and control Power supply: 230 VAC, 50/60 Hz, 1.6 KW Size: 600mm × 700mm × 600mm (length X width X height) Weight: about 65 kg
Introduction: The Dumas nitrogen method is to determine the nitrogen / crude protein content in the sample by means of high temperature combustion. Compared with the traditional Kjeldahl method, the tedious process of digestion and the use of chemical reagents are avoided. Meanwhile, the analysis time is greatly shortened and the precision is improved, realizing fully automated and 100% recovery of nitrogen in the true sense. DN2000 is China's first commercialized Dumas nitrogen meter launched by Nordtech, breaking the situation that the domestic Dumas nitrogen mainly imported equipment occupies and represents the strong rise of the domestic Dumas nitrogen analyzer. Applications: food and grains, animal feed, dairy products, meat and meat products, soil and fertilizers, automotive aqueous urea,
