Technical data

Understanding Your Agilent ChemStation 27
Agilent ChemStation Features
1
About the ChemStation Software
table can be configured by the user. The user can jump between individual
cells in the table and copy, cut or paste individual cells or entire rows or series
of rows in order to build sequences efficiently and quickly.
Samples may be identified in the sequence table as unknowns, calibration or
control sample types. The sample type determines any special data evaluation
treatment of the sample:
• unknown samples are evaluated and reported according to the method
specification,
• calibration samples are used to recalibrate the quantification component of
the method as described below, and
• control samples are evaluated against the limits for each component
defined in the method. If the results lie outside any specified parameter
range the execution of the sequence will be halted.
Calibration samples may be defined as simple, cyclic or bracketed. Simple
recalibrations mean a recalibration occurs each time a calibration sample is
defined in the sequence. Cyclic recalibrations occur at defined intervals
during analysis of a series of unknowns. In bracketing a series of unknown
samples, two calibration sets are analyzed. The quantitative reports for the
unknown samples are then calculated using a calibration table averaged
between the two calibration sets.
The partial sequence functionality allows users to see the order of execution of
the sequence and also select individual sample entries to rerun or re-evaluate.
When re-evaluating data already acquired users can specify whether
reprocessing uses the original sample quantification data or new data entered
in the sequence’s sample table.
Sequences may be paused to run single injection priority samples by another
method, then restarted without disrupting the automation. Samples can be
added to the sequence table while the sequence is executing.
Both the sequence and partial sequence tables may be printed.
For more information on sequences, see “Automation” on page 159, and the
online help system.