Abstract: In a plasma generator for high-frequency supply of an induction coil containing a plasma of an aerosol with a substance to be analyzed, quarter-wave conductors of a quarter-wave resonant system are incorporated in the apparatus after having been divided and folded, which provides a significant saving in space. Added to the conductors are electric auxiliary circuitry for balancing the resonant system and for matching the frequency to a filled induction coil. The conduction coil is capable of up and down movement in a disturbance-free manner, the coil always being maintained at zero potential.

Abstract: Apparatus for analysing elements by inductive plasma spectrometry produced by the air. It comprises a tube, means for producing within said tube a plasma containing the element and means for the spectrometric analysis of the like from the plasma. The plasma production means incorporate means for circulating air in the tube, said air serving to produce the plasma. Application to the analysis of an element contained in the air.