Thanks to this mechanism sample and flux drop independently allowing outgasing of the flux at low temperature prior to the analysis.   The benefits are prevention of flux spatter, control of crucible corrosion and optimisation of flux outgassing temperature.   As a result, optimisation of flux efficiency without consequences on blank contributes to high accuracy measurements.

1: The crucible is out gassed by a high current  
2: The flux is introduced into the crucible and it is also out gassed.
3: The sample drop into the crucible for analysis