About Methods, Sequences, and Data Analysis 7
Operating Guide 67
What Happens When You Load a Method?
There are two kinds of methods:
• The active method—This is sometimes referred to as the
current method. The settings defined in this method are
the settings the GC is currently maintaining.
• User- stored methods—Up to 20 methods can be stored in
the GC.
When a method is loaded from the GC or Agilent data
system, the setpoints of the active method are immediately
replaced with the setpoints of the method loaded.
• The method loaded becomes the active (current) method.
• The Not Ready light will stay lit until the GC reaches all
of the settings specified by the method that was just
loaded.
Refer to “Running a Method or a Sequence from the Keypad”
for details on using the keypad to load, modify, and save
methods.
What Is a Sequence?
A sequence is a list of samples to be analyzed along with the
method to be used for each analysis. Once defined, the
sequence may run unattended, automatically processing the
samples defined in the sequence.
Refer to “Running a Method or a Sequence from the Keypad”
and the Advanced User Guide for details on how to create,
load, modify, and save sequences using the keypad.
Automating Data Analysis, Method Development, and Sequence
Development
Data compiled from samples (the output of the detectors) is
digitized and can be sent to an automated data analysis
system (such as the Agilent ChemStation), where it is
analyzed and the results summarized in reports.
The Agilent ChemStation also can be used to create and
store methods and sequences that are sent to the GC
through a network.
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