206
Introduction to the Autosampler
Sampling Sequence
Next, the needle is raised, and the vial is positioned below the needle. The
needle moves down into the vial, and the metering unit draws the sample
into the sample loop (Figure 33).
Figure 33 Drawing the Sample
When the metering unit has drawn the required volume of sample into the
sample loop, the needle is raised, and the vial is replaced in the sample
tray. The needle is lowered into the needle seat, and the injection valve
switches back to the mainpass position, flushing the sample onto the
column (Figure 34).
Figure 34 Mainpass Position (Sample Injection)
To Next Page
Loading...
Need help?
General
