33
3 Installing Packed Columns and Setting Analytical Flow Lines
3.2
3
.
GC-2014
3.2
Dual-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
Summary of Contents for GC-2014
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