dispersion of a sample

in atomic spectroscopy
https://doi.org/10.1351/goldbook.08466
Conversion of the whole or part of a liquid or solid sample into a physical form sufficiently finely divided to allow it to be atomized (see atomization) upon introduction into the atomizer.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 716 [Terms] [Paper]