The products of combustion are sent through a packed chromatographic column. The column converts the products into combination of NO2,CO2,SO2,H2O. These simple compounds are then measured using a thermal conductivity detector.
The calibration is performed by analyzing standard compounds with K-factors calculations. The analysis of all elements in the CHNS/O group is performed simultaneously. Time of full analysis cycle is less than 10 minutes. The high precision micro scale has resolution of 0.1 microgram and works with samples of up to 4-5 milligram.
One interesting feature is special system of calculating the precise amount of Oxygen necessary for full combustion of the sample. The Oxygen is automatically cut at that pre-calculated amount. This feature helps to prolong the life of catalysts and reduce cost.
