BUCHI SpeedExtractor E-916 - Manual (Page 54)

6 Operation
54 SpeedExtractor E-916/E-914 Operation Manual, Version D
Specify the vial volume:
• Specification of the volume of the collection bottle is
an important safety feature, since it alerts the oper-
ator if there is a conflict with the total volume used
for the subsequently defined extraction volume. The
volumes of the most frequently used bottles (60 mL,
150 mL, 220 mL and 240 mL) are predefined. If
using other volumes than the mentioned ones,
select “unspecified”. It is also possible to extract
into the waste. This option is made for applications
where the sample after extraction is of interest, not
the extract. Change the parameter using the selec-
tion knob.
Specify the cell volume:
• Specifying the volume of the extraction cell is
mandatory, because it has an influence on some
process-related parameters, such as the heat-up
time. Change the parameter using the selection
knob.
NOTE
If the total extract volume gets too large and/or the
extract of different cycles are to collect separately,
insert a vial change in the method to exchange the
collection bottle between runs (see next paragraph).
Define the solvent mixture
• Go to the SOLVENT submenu to choose a solvent
or solvent mixture according to the solvent list
previously adapted (see section 6.2.2) by either
pressing LIST or directly using the selection knob.
Press SELECT to select the solvent for your solvent
reservoirs and set the solvent ratio according to
your method. Proceed similarly with other solvents
if necessary. The NEXT button moves the cursor
forward to the next entry.
NOTE
The sum of the ratios must be equal to 100 %.
If alternating solvents per cycle are used, choose
100% only for one solvent reservoir as the sum has to
equal 100 %.
• The EDIT button allows you to directly modify the
solvent name without changing the solvent list.
Press ACCEPT to confirm the changes and switch
back to the EDIT METHOD display with the left
arrow.