BUCHI Extraction Unit E-816 SOX - Manual (Page 31)

6 Operation
31 E-812/816 Soxhlet Operation Manual, Version B
6 .3 .4 Defining a method
In the main menu select Program. The following screen opens:
Fig. 6.6: Extraction solvent
You can now select the desired solvent by turning the selection knob.
NOTE
The Extraction Unit is only tested with the solvents petroleum ether, diethyl ether, chloroform and
hexane. The use of other solvents can be done by choosing “Custom” but is on the risk of the user.
Please check chemical resistance of all parts in contact with the solvent prior to use.
Press OK to confirm and then Next to proceed with the Extraction step.
Fig. 6.7: Extraction step
Set the extraction time and/or the number of cycles by means of the selection knob and press OK to
confirm it.
NOTE
If the extraction time and the number of cycles are programmed, both criteria need to be fulfilled to
go to the next step.
Positions that have fulfilled the criteria will be heated until the last position has fulfills the criteria as
well.
If you have to change the default heater setting, you can regulate it between 50 - 110%. Use the
default setting for general extraction purposes.
Press Next to proceed with the Rinse step.