This Information Applies To: Agilent OpenLab CDS
Issue
Identifying the baseline codes and baseline code descriptions for OpenLab CDS
Background
Figure 1: ChemStation integrator vs EZChrom integrator in Processing Method
Figure 2: BL code column in Injection Results
Figure 3: Baseline type in reports
Resolution
Identifying Baseline Codes for ChemStation Integrators
In the integration results of a report, each peak is assigned a two-, three- or four-character code that describes how the signal baseline was drawn.
Character 1 and 2
The first character describes the baseline at the start of the peak and the second character describes the baseline at the end of the peak:
Character 3
The third character may be a blank space, and describes an error or peak flag:
Character 4
The fourth character describes the peak type. It is shown only for forced integration events, or if manual integration has been triggered. For example, you use an integration event to define a solvent peak, or you use manual integration to correct the baseline or to delete a peak:
Identifying Baseline Code Descriptions for EZchrom Integrators
A baseline code consists of two letters. The first letter denotes the peak beginning baseline type and the second letter indicates the peak ending baseline type.
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