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Description
by Type Evaporation by Kuderna-Danish A high speed evaporation glassware system designed to
rapidly reduce large solvent volumes to endpoints of 110 ML. Glassware features
solvent recovery and 3-ball Snyder column to remove micro droplet presence in
the vapor stream. Very effective in retaining semivolitile presence in the
concentrate.
Evaporation by traditional glassware Similar to KID evaporation but uses flat bottom flasks
and is designed to go to dryness. A gas injector can be used to automate this
procedure. Solvent recovery is standard, Snyder column is optional. Meets a
variety of procedures including US EPA Oil & Grease methods
(1664).
Extraction by Solid / Liquid Soxhlet & evaporative
Soxhlet An effective method for
removing organic materials from solid materials by continually immersing and
removing the solid in an organic solvent. Through clever glassware design, the
chamber containing the solid material is repeatedly flooded and drained until
all trace organic materials are removed, without moving parts. A variant of
this design allows a follow up evaporation to occur by opening a valve, without
removing the glassware from the heating system.
Extraction by Liquid / Liquid A procedure to remove trace organic materials from 1
liter water samples by continually dripping an immissable distilled solvent
repeatedly through the sample water column until extracted to exhaustion.
Variants of these designs include high accuracy extractors and extractors with
evaporative capabilities. For evaporative design see ROT-X-TRACT-LC using an
accelerated extractor. |