Evolution Workstation has an extensive Help function, which includes much of the information
contained in this section of the manual.
7.4 Method Parameters
The functions of all parameters are explained below. When a new method is created, the parameter
tables are filled with the default parameters. The parameter tables for each particular method
include only the parameters relevant to it.
NOTE:
When setting Gas Control Parameters, make sure that the total flow value (Column Flow +
Split Flow + Septum Purge Flow) is no less than 6 ml/min. This is a minimum required for a
stable flow/pressure control.
Take also into account that a minimum inlet pressure required for stable column flow
control is 7 kPa.
7.4.1 General Method Parameters
Method Name
This parameter identifies the method. The user enters it when the method is first saved. Until the
user enters a name, Evolution Workstation will use a temporary name (e.g. Method1). A method
name can be at most 11 characters long.
Equilibration Time
This parameter is used to ensure the stability of the initial method conditions prior to OPTIC-4
entering the Ready state.
End Time
This parameter determines the time between the start and end of the GC method run. It should be
set to the total run-time for the GC analysis, so that the cooling of the inlet and resetting of column
and split flow parameters coincide with the end of the GC run.
7.4.2 Temperature Parameters
Initial Temperature
This parameter determines the inlet temperature at the start of the method run.
Ramp Rate
This parameter determines the rate of increase of the inlet temperature.
Final Temperature
To Next Page
Loading...