Purpose
Quantitative determination of elements: ZN, Ca, Ba, Mg, Mo, Pb, Na, U and P in mineral oil additives. Following DIN 51431.
Brief description of the method
The sample is sucked into a gas ionised in a high-frequency electromagnetic field. The stream of ionised gas is passed through a coil attached to a high-frequency generator. Argon is used as the plasma gas as it is relatively easy to ionise. The light energy emitted by each element is passed by a polychromator an a photoelectric multipler as the detector to the electronics and processed in the microprocessor. Finally, the content of each element present is calculated by system software.