Electrothermal atomic absorption spectroscopy in which the sample is deposited directly onto the wall of the electrothermal atomizer tube, from which it undergoes all the transformations leading to atomization.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 736 (https://doi.org/10.1515/pac-2019-0203)