Dumas nitrogen analyzersummary:

Dumas nitrogen analyzerThe detection method is to store lead carbonate at the front end of the combustion tube. Before the decomposition of the sample, the lead carbonate is heated to completely eliminate the carbon dioxide released by decomposition from the air in the combustion tube. After the combustion of the sample and CuO, the generated gas is driven by the CO gas flow generated by the decomposition of PbCO to the gas collection cylinder containing KOH solution standing on the mercury tank. During combustion, occasionally some nitrogen is converted into nitrogen oxides, which are reduced after passing through red hot copper powder, so that all nitrogen in organic matter is reduced to N.

Parameters:

Detector: TCD detector (with automatic calibration)
Sample weight: 1g
Automatic sampler: 100 or more positions
Reproducibility (RSD):<0.1% EDTA standard (9.57% N)
Recovery rate:> 99.5%
Detection limit: 0.01mgN
Carrier gas requirement: Helium 99.999% (purity 5.0)
Oxygen 99.999% (purity 5.0)
Compressed air or nitrogen requirement: purity 99.6%
Carrier gas pressure: 3 bar oxygen pressure; 3 bar compressed air or nitrogen
Nitrogen pressure: 4 bar
Data interface: USB, RS232
Power: 1400 W
Power Supply: 230 V / 50 – 60 Hz
Weight: 55 kg
Appearance dimensions: 710x510x410 mm

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