A sample which results where a small portion has been separated from the
lot or
laboratory sample by selective means such as magnetic-, density-, or manual separation, by
micro-drilling, or by centrifugation, e.g. the separation of magnetic materials from a
geological material, or the separation of metal particles from a lubricating oil.
If individual particles are analysed the term individual particle analysis is applied.
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 1467