charring

https://doi.org/10.1351/goldbook.C01010
@P04961@ of samples containing organic matter. In the presence of oxygen this is referred to as @A00468@.
Source:
PAC, 1992, 64, 253. (Nomenclature, symbols, units and their usage in spectrochemical analysis - XII. Terms related to electrothermal atomization (IUPAC Recommendations 1992)) on page 256 [Terms] [Paper]