Ash (chemistry)
Process prior to a chemical analysis / From Wikipedia, the free encyclopedia
"Ashing" redirects here. For the semiconductor manufacturing process, see plasma ashing. For other uses, see Ash (disambiguation).
In analytical chemistry, ashing or ash content determination is the process of mineralization by complete combustion for preconcentration of trace substances prior to a chemical analysis,[1] such as chromatography, or optical analysis, such as spectroscopy.