Materials which are not fully dissolved by acid-digestion at atmospheric pressure
may require a more vigorous treatment in pressure vessels lined with polytetrafluoroethylene
(
PTFE) glass, silica or vitreous (glassy) carbon or in sealed silica tubes; this treatment
is called bomb-digestion. The
test sample and acids are heated in such a closed vessel, so that the digestion is carried out
at higher temperature and pressure.
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 1469