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Agilent InfinityLab LC Series Vialsamplers User Manual
19
Introduction
1
Operating Principle
11
The gripper arm moves out of the needle station and the wash port snaps
back in position.
12
The gripper arm replaces the vial, and returns to the home position.
Simultaneously, the needle lowers into the seat.
13
The injection valve switches to the mainpass (main path) position.
Injection Sequence
Before the start of the injection sequence, and during an analysis, the injection
valve is in the mainpass (main path) position (see
on page 19). In this
position, the mobile phase flows through the autosamplers metering device,
sample loop, and needle. This ensures that all parts in contact with sample are
flushed during the run, thus minimizing carry-over.
Figure 4
Mainpass (main path) Position - standard position during runs and when the
sampler is idle
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