Injection Sequence - Agilent Technologies G1329A User Manual

Injection Sequence

Before the start of the injection sequence, and during an analysis, the injection
valve is in the mainpass position
mobile phase flows through the autosamplers metering device, sample loop,
and needle, ensuring all parts in contact with sample are flushed during the
run, thus minimizing carry-over.
Figure 2
When the sample sequence begins, the valve unit switches to the bypass
position
port 1, and flows directly to the column through port 6.
Figure 3
Mainpass Position
(Figure 3 on page 11). Solvent from the pump enters the valve unit at
Bypass Position
Introduction to the Autosampler
(Figure 2 on page 11). In this position, the
Sampling Sequence
1
11