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Using the Manual Injection Valve
About the Injection Valve
About the Injection Valve
The injection valve has six ports and can be moved manually between two positions.
In the LOAD position, the mobile phase is led from the pump directly to the column,
allowing you to inject your sample into the sample loop. In the INJECT position, the
mobile phase is led through the sample loop, flushing the contents of the loop onto
the column.
Figure 15 Valve Positions
Valve Positions:
1 to 6 valve ports
7 inlet (from pump)
8 outlet (to column)
9 needle port
10 vents
11 sample loop
Making An Injection
The sample loop can be either completely or partially filled. This depends on the
amount of sample you have.
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