Dionex ASE 150, Operator'S Manual

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2 • Description
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2.4 Method Control
A method determines how the ASE 150 performs the sample extraction. Methods
are defined on the
METHOD EDITOR
screen (see Figure 2-6 ).
The following method parameters define the method. See Section C.1.4 for
detailed descriptions of the method parameters.
•
TEMPERATURE
—the temperature at which to heat the cell.
•
STATIC TIME
—the number of minutes to maintain the cell contents (sample
and solvent) at the temperature set point.
•
RINSE VOLUME
—the amount of solvent to rinse through the sample cell after
the static extraction.
•
PURGE TIME
—the amount of time the cell is purged with nitrogen.
•
STATIC CYCLE
—the number of times the static extraction and rinse cycles are
performed.
•
CELL TYPE
—the type of cell to use (stainless steel or zirconium).
Two types of methods are available:
•
Preprogrammed methods are application-specific methods created by Dionex.
These methods cannot be changed or deleted by the user. For a list of the
parameters for each preprogrammed method, see
Section 2.5 .
•
Custom methods are user-programmable methods. All custom methods
initially contain the default method parameters. You can modify these
methods as required. For instructions on how to edit a custom method, see
Section 3.6 .
Figure 2-6. Method Editor Screen (Initial View)
TEMPERATURE
METHOD
STATIC TIME
60%
5MIN
100C
1
RINSE VOLUME