In the direct injection setup the injection valve ports are assigned as follows:

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Figure: Injection valve with connected capillaries

Port

Connected Component

1

Viper plug

2

Solvent valve

3

Needle seat

4

Separation Column (if installed: Column Compartment)

5

Sample loop

6

Metering device

7

Pump

For direct injection and trap-and-elute workflows, the solvent valve ports are assigned as follows: