Dionex ASE 150 - 2.4 Method Control

2 • Description
Doc. 065207-02 9/08 19
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