Elemental Analyzer

This device can measure the concentration of hydrogen, carbon, nitrogen, and sulfur contained in a few mg sample with an accuracy of 0.1 wt%. When the sample is fed into the device, it is combusted and oxidized in the combustion tube heated to approximately 1000°C to form a gas mixture. This gas is passed through a reduction tube filled with reducing copper, which reduces nitrogen oxides (NO_x) to nitrogen gas (N₂) and sulfur oxides (SO_x) to sulfur dioxide (SO₂). The gases are then separated in a column, and the concentration of each element in the sample is calculated by detecting and quantifying each gas with a thermal conductivity type detector. Analysis of various compounds such as organics and metal complexes is possible.