9.7 Introduction to HPLC System
9-55
CBM-20A/20Alite
9
9.7.3 Example of Autosampler System (2)
The CBM-20A system controller can control a maximum of 8 LC components (12 LC components as an
option).
Use the same type of pumps for high-pressure gradient system.
Mobile phase is drawn out of the reservoir bottles and pumped through the tubing by the pump.
The degassing unit removes dissolved air from the mobile phase, preventing air bubbles and consequent
rise, drift or other baseline irregularities caused by dissolved air.
The pump sends the mobile phase through the autosampler, column and detector, in that order, and finally
into the waste container.
The mixer enhances mixing efficiency of the mobile phases.
The autosampler automatically injects the sample into the flow lines. By adding a rack changer, it is possible
to automatically change the autosampler racks.
In the column, the components are separated by means of the mutual interactions of the mobile phase and
the column packing (stationary phase).
The detector detects the components eluted from the column, and sends the signal data to a Chromatopac
or PC.
Mobile phase from the detector drains into the waste container.
The CBM-20A system controller can control a maximum of 8 LC components (12 LC components as an option)
including a maximum of 4 pump units.
Solvent Flow
Function of Components
Reservoir bottle
Pump unit
Mixer
Column
Detector
Waste container
Degassing unit
Autosampler
1
2
3
4
5
6
7
1
2
3
4
5
7
6
3
9
8
8
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