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PeakTrak will divide the total volume by the number of injec-
tions to determine the injection volume for each separation. If
this volume exceeds 50% of the loop volume, a warning message
will appear recommending a change in the parameters. This
message can be ignored at the discretion of the user. PeakTrak
will perform exactly as programmed. It will also compensate for
the volume of tubing used for the supplied sample probe. If the
sample probe is ever lost or damaged, it should be replaced by
the AutoInjector Needle Assembly (
During the programmed separation sequence, any changes made
to the method will be included on any of the remaining injections.
This includes automatic changes such as using the peak hold
feature or automatic run length extension. For the most reliable
operation, it may be best to disable these automatic features.
Mid-separation flow rate changes will occur at the beginning of
the next separation. Please be aware that changes of flow rate
will not automatically affect the overall run length.
6. After the last injection is performed, a sample probe wash
screen is shown prompting the user to wash the probe with
a strong solvent followed by a weak solvent. Perform these
duties as requested.
Note
A weak solvent is used following the usage of the strong sol-
vent to inhibit poor separation due to excessive strong solvent
in the probe tubing. It is important to perform Step 6 to ensure
there is no carryover into the next separation.
7. At the completion of the sequence, the final separation
results will be displayed. To easily view previous separa-
tions, press the R
8. Select File | Open to view previous separations.
If a sample had multiple injections, the run sequence will be dis-
played under a single name preceded by a "+" symbol. This
symbol indicates there are multiple injections with the same
base file name. Names are appended with "-I(#)" to signify the
numerical order of the separation. See Table 2-1 for an example.
Table 2-1 Naming Scheme
Name
Sample Run (user-defined; single
injection run)
Sample Run I1 (system-appended;
multiple injection run)
Sample Run I2
Sample Run I3
9. Select the file you wish to display.
Section 2 The AutoInjector Module
P
/
60-5234-657).
N
key to return to the H
EWIND
Description
First injection.
First injection.
Second injection.
Third injection.
Automation
screen.
OME
2-11
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