38 Operation Manual
4 Methods and Sequences
What Is a Method?
A method is the group of settings required to analyze a
specific sample.
Since every type of sample reacts differently in the GC—some
samples require a higher oven temperature, others require a
lower gas pressure or a different detector—a unique method
must be created for each specific type of analysis.
What Is Saved in a Method?
Some of the settings saved in a method define how the
sample will be processed when the method is used.
Examples of method settings include:
• The oven temperature program
• The type of carrier gas and flows
• The type of detector and flows
• The type of inlet and flows
• The type of column
• The length of time to process a sample
Data analysis and reporting parameters are also stored in a
method when it is created on an Agilent data system, for
example OpenLAB CDS or MassHunter software. These
parameters describe how to interpret the chromatogram
generated by the sample and what type of report to print.
See the Advanced Operation Manual for more details on
what can be included in a method.
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