Thermo Scientific TSQ Altis, Руководство по оборудованию

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C
Divert/Inject Valve
Divert/Inject Valve Configurations
130 TSQ Altis, Quantis, and Fortis Hardware Manual Thermo Scientific
Figure 66. Divert/inject valve positions
Divert/Inject Valve Configurations
You can configure (plumb) the divert/inject valve as a loop injector (for flow injection
analysis) or as a divert valve. The divert valve can switch the solvent front, gradient endpoint,
or any portion of the LC run to waste.
Figure 67 shows the divert configuration.
Loop Injection
In the loop injector valve configuration, the valve switches between these two positions:
Load (position 1–2)—The sample loop is isolated from the solvent stream. Solvent flow from
the LC pump enters and exits the valve through ports 5 and 6, respectively. When you load
the sample into port 2, the sample enters and exits the sample loop through ports 1 and 4,
respectively. As you overfill the sample loop, the excess sample exits the valve through port 3
to waste.
Inject (position 1–6)—The sample loop is open to the solvent stream. The solvent flow from
the LC pump flushes sample out of the sample loop, and then exits through port 6 into the
API source.
Position 1-2 Position 1-6
No. Description
1. Position 1-2: Internal connection path in light gray
2. Position 1-6: The rotor switches between position 1-2 to 1-6
3. Valve screw
3
2
1
5 4
3
2
1
5
4
6 6
1
2
3