noun chemistry An analytic procedure in which a sample is heated in a furnace to leave a residue of ash , either to determine the gross mineral content, or as a preparation for further analysis.

What does it mean to ash a sample?

3.2 Dry ashing. Dry ashing is an alternative means of sample preparation and is accomplished by heating the sample in an open dish or crucible in air. Very often this is done in a muffle furnace located in a clean room.

What is the meaning of ashing?

Overview. Ashing in analytical chemistry is defined as the heating of a substance to leave only noncombustible ash, which is analyzed for it's elemental composition.