Shimadzu GC-2014 - Sample Injection Systems; 4.1 Sample Injection Unit Configuration

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3 Installing Packed Columns and Setting Analytical Flow Lines
3.2
3.
GC-2014
3.2Dual-Column Packed FID Analysis
Connecting the left (L) sides and right (R) sides of the dual INJ and dual FID with columns
respectively allows for analysis with the dual-column configuration.
Dual-column configuration is used in following cases.
1. Same type of columns are connected to the left and right sides in order to background-
compensate the increase of the baseline during programmed temperature analysis.
2. Different types of columns are connected to the left and right sides in order to obtain a
different chromatogram when a sample is injected to the left (L) side and right (R) side
of the dual INJ.
Do not cross the columns (L/R). It hinders correct analysis.
Fig. 3.2.1 Dual-column configuration
NOTE
Column (L) Column (R)
Dual FID
L
(L) (R)
Dual INJ
R
L R
Dual AFC