2 • Description
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2.3.8 Simultaneous Injection Option
When the AS simultaneous injection option is installed, a single AS can
deliver sample to two independent chromatography systems. The sample
is injected simultaneously to both systems (two injection valves are
required). Dual analyses can be performed with only one sample, thus
increasing sample throughput and eliminating the need to label, fill, and
track two sample vials.
In Chromeleon or Chromeleon Xpress, the two chromatography systems
and the AS are configured into a single timebase and each system is
assigned a unique device name and channel. This lets you monitor and
control both systems from one Control panel and run all samples in one
sequence.
The simultaneous injection option requires a 5 or 10 mL
sample syringe
and an 8.5 mL sampling needle assembly (see Section 2.3.3
). Full-loop
injections are required with this option.
See Section 3.6.9
for details about simultaneous injections.
2.3.9 Sequential Injection Option
When the simultaneous option is installed, a single AS can deliver sample
to two independent chromatography systems. With the sequential option,
sample is delivered to the first system, flow is rerouted (diverted), and
sample is then delivered to the second system. Sequential injection allows
different samples to be injected into each system.
The sequential injection option requires two injection valves and a
diverter valve (for switching sample flow between the two systems). The
diverter valve is installed in the AS autosampler compartment. The
injection valves must be installed in the IC system’s chromatography
compartment.
See Section 3.6.11
for details about sequential injections.
NOTE The diverter valve can only be controlled by
Chromeleon or Chromeleon Xpress. It is not
controllable from the AS front panel.
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