Genevac HT-8 & HT-12 Series II Evaporating Systems
Page 42 of
64
04-4541
Issue 1-9 – June 2008
6.4 Pre-programmed
Runs
Providing that your HT-8/HT-12 has SampleGuard fitted it will have been loaded with a number of pre-
programmed evaporation runs. The runs can be found located at runs 51 to 60 of the RUN selection screen.
Desired runs can be copied to the top page so as to be readily available, using the “copy to” function. Methods
61 through to 98 are all associated with these pre-programmed methods, and methods 99 and 100 are for use
by Genevac service engineers, please do not alter them.
The pre-programmed methods have been designed to cover a group of solvents, such as high boiling point
solvents. The table below provides a guide to aid correct run selection. Each method has been programmed
to be used with a particular group of solvents, therefore, it may be possible to program a more efficient method
for just one of those solvents. If you regularly use a single solvent or solvent mixture, then please contact your
Genevac representative, or
for assistance programming a suitable method.
These methods have been designed to make use of all the appropriate features of the system to provide the
most optimal evaporation conditions. All methods make use of the automatic end of method detection feature,
so that no times need be set, the system will stop when all the samples are dry. Each method has a venting
procedure linked to the end of the evaporation process, to help remove residual vapours from the chamber.
When using these preset programs, they
will only function correctly
if Sample Guard probe #1 is
placed into the aluminium sample holder block or fast stack swing.
Run
Number
Name
BP Range Solvent Examples
Application
51
Volatiles - not DCM
60-90°C Ethyl Acetate or Methanol Single volatile solvents with no risk
of bumping
52
Very Volatile & DCM
40-90°C DCM (Methylene Chloride)
or Chloroform
Volatile solvent mixtures, and DCM
(Methylene chloride), where risk of
bumping is high
53
Medium BP Solvents
90-155°C DMF or Toluene
Medium bp solvent or mixture of
medium bp solvents
54
Med BP & Volatile
40-155°C DMF & DCM (Methylene
Chloride)
Mixtures of medium and volatile
solvents with high risk of bumping
55 Pre-heat
Chamber
for
High BP solvents
- No
solvents
should
be
present
Rapid pre-heat of chamber before a
high bp solvent run, swings and
samples
MUST
be removed before
this method is used.
56
High bp 140+
140-190°C DMF, DMAc, DMSO
High bp solvents
57
Very High BP Solvents
190°C + NMP, DMI
Very high bp solvents
58
HPLC Fractions
-
Water & Acetonitrile or
Methanol
HPLC fractions
59 Aqueous
only
100°C Water
Water
only
60
Remove stubborn
solvents
-
Any
Drying samples, which have not
been fully dried using another
method. The condenser
MUST
be
empty before this method is used
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