Instrumental background

Elemental Analyser – Fisons type NA 1500 NCS


The instrument is devoted to pre-treatment of samples for stable mass spectrometry.

The analytical method is based on the complete and instantaneous oxidation of the sample by “flash combustion” which converts all organic and inorganic substances into combustion products. The resulting combustion gases pass through a reduction furnace and are swept into the chromatographic column by the carrier gas (helium). The gases are separated in the column and detected by the thermal conductivity detector (TCD) which gives and output signal proportional to the concentration of the individual components of the mixture.