L1 /
3
CH3041
EXTRACTION
Reactive
HgCl2
Elemental Hg
& particles
& particles
2) The adsorbent cartridges in personal air
samplers extract organics from the air.
samplers extract organics from the air.
• Water 1) Organics are often
extracted from water to increase
their concentration. To do this the
H2O is passed through a short
C18-SPE cartridge which traps all
organic material. The analytes are
then extracted from the cartridge
with a polar organic solvent.
extracted from water to increase
their concentration. To do this the
H2O is passed through a short
C18-SPE cartridge which traps all
organic material. The analytes are
then extracted from the cartridge
with a polar organic solvent.
• Air 1) An Annular
Denuder is a device which allows gases to be extracted through the sorptive walls of a diffusion tube while particles are passed along the tube.
