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CH3041
SOLIDS SEPARATION
Solids
• Mineral solids are usually ground (ball mill) & sieved to a suitable particle dimension.
• Particulate solids are sieved into various
particle sizes (soils, air analysis eg. PM2.5).
particle sizes (soils, air analysis eg. PM2.5).
• Digestion : following grinding &
sieving
this is used when the solid must be
converted into soluble material for analysis. Often separation occurs at this step as
only some of the material is solubilised.
this is used when the solid must be
converted into soluble material for analysis. Often separation occurs at this step as
only some of the material is solubilised.
• Wet Ashing
is the most common procedure for digesting solid material.
