Dionex As, Operator'S Manual

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AS Autosampler Operator’s Manual
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Doc. 065051-03 1/08
2.3.10 Concentrator Injection Option
The AS concentrator injection option lets an AS deliver sample and
reagent to a Dionex ultra-low pressure concentrator column. With this
option, a concentrator column is installed on the injection valve instead of
a sample loop. A 5 or 10 mL
sample syringe can be installed to allow
larger sample loading volumes. If the 5 or 10 mL sample syringe is
installed, an 8.5 mL sampling needle assembly must also be installed (see
Section 2.3.3 ).
The AS is capable of delivering at a maximum pressure of 690 kPa
(100 psi). When setting up concentrator injections, make sure to select
syringe speeds that will keep the backpressure below 690 kPa (100 psi),
taking into account the pressure from the installed tubing and the
concentrator column. A syringe speed of 1 or 2 is required. See
Section 3.8 for details.
See Section 3.6.10 for details about concentrator injections.