9 | Performing an extraction
BÜCHI Labortechnik AG
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Operation Manual FatExtractor E-500
u
Select the method you wish to use.
u
Tap the function
[OK]
on the function bar.
ð
The method is selected.
9.3.4
Selecting the extraction positions
The extraction positions can show the following status:
Status
Meaning
The extraction position is activated.
The extraction position will be heated.
The extraction position is not activated.
The extraction position will not be heated.
The extraction for this extraction position is aborted.
The extraction position is not heated anymore.
Navigation path
➔
u
Navigate to the
[Home]
menu via the navigation path.
u
Select the extraction position with the navigation control.
u
Tap the function
[OK]
on the function bar.
ð
The status of the extraction position is changed.
9.3.5
Starting a Soxhlet Extraction
NOTE
Boiling retardation
4
The beakers contain an integrated boiling surface.
ð
No boiling aids are needed.
NOTE
As an alternative fill the solvent at the beginning of an extraction through the con-
denser. See Chapter 9.1.1 "Adding solvent through the condenser", page 61
Navigation path
➔
Precondition:
R
The instrument has been prepared.
R
A method is selected.
R
The sample is prepared (in the glass sample tube or in the thimble).
u
Switch on the connected chiller or open the water tap.
u
Pull the chamber rack out of the instrument.
u
Place the prepared glass sample tube or thimble with the corresponding holder in
the extraction chamber.
u
Set the optical sensor to the correct position. See Chapter 9.3.1 "Adjusting the op-
tical sensor on the extraction glass chamber Soxhlet", page 63
u
Push the chamber rack back in the instrument.
u
Fill the beaker with organic solvent.
u
Put the beaker on the corresponding position on the heating plate.
u
Close the protection shield.
