ICS-3000 Ion Chromatography System
6 Doc. 065031-04 1/08
AS Autosampler (AS)
The AS is a powerful, full-featured autosampler that precisely delivers
from 1.0 to 99.9 µL (in 0.1 µL increments) or 100 to 1000 µL (in 1 µL
increments) of sample to an injection valve. The autosampler can operate
in several modes:
• Concentrate—Sample is delivered to a single analytical system for
trace analysis and matrix elimination; a concentrator column is
installed on the injection valve in place of a loop.
• Simultaneous—Sample is delivered to two analytical systems
simultaneously; a sample loop is installed on each injection valve.
Sample is delivered equally to the two systems (50% of the volume to
each), allowing two complete, separate analyses to be performed with
just one sample.
• Sequential—Sample is delivered to two analytical systems in
sequence. This allows on-demand injection of two independent
samples to two applications, using one autosampler. While the first
system is being analyzed, the second system is being prepped and
loaded for sample analysis.
• Sequential Concentrate—Sample is delivered to two analytical
systems in sequence; a concentrator column is installed on the
injection valve in place of a loop.
• Reagent Prime (available in Concentrate mode only)—Primes the
lines with reagent. For example, implementing the Reagent Prime
mode during the matrix elimination step ensures that the appropriate
reagent is in line for matrix elimination and prevents cross-
contamination between reagents.
• Reagent Flush (available in Concentrate mode only)—Flushes the
concentrator column with reagent (for example, a known source of
clean deionized water) to remove unwanted sample matrix.
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