11
Intended use
Selection of a column
Basics
The selection of a column, also called column selection, is used
in chromatography, for example in the following cases:
Method development
Column selection
Injection
From the injection valve, the sample is injected via the channel
2->1
onto the column
A
. From connection
5
, the components of
the sample are forwarded separate to the detector.
Fig. 5
Column selection – injection from the 6P/3C valve
on column A
Note:
Make sure there is no pressure when switching
between the columns so that the columns are not
damaged.
From the injection valve, the sample is injected via the channel
2->3
onto the column
B
. From connection
5
, the components of
the sample are forwarded separate to the detector.
Fig. 6
Column selection – injection from the 6P/3C valve
on column B
Injecting on column A
1
2
3
4
5
6
Column B
Column A
Detector
Injection
Injecting on column B
1
2
3
4
5
6
Column A
Column B
Injection
Detector
