thermal volatilization 

https://doi.org/10.1351/goldbook.08557
Process in glow-discharge atomic emission spectroscopy in which sample volatilization occurs by heating due to sample bombardment with argon ions.
Notes:
  1. The process causes evaporation of the sample constituents in accordance to their boiling-points.
  2. Although this technique offers highest detection power for most volatile elements its use in routine applications is still limited by the analytical challenges posed by the transient nature of the analyte signal.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 735 [Terms] [Paper]