In order to determine elements which are easily volatilized, or are present as volatile
species, organic material may be ashed in oxygen in a closed oxygen combustion system.
One such method is oxygen-flask combustion by which the
test sample is burned in a closed flask containing oxygen and an absorbing solution in which
the analytes are subsequently determined.
Source:
PAC, 1988, 60, 1461
(Nomenclature, symbols, units and their usage in spectrochemical analysis-X. Preparation
of materials for analytical atomic spectroscopy and other related techniques (Recommendations
1988))
on page 1468