Thermo Scientific Dionex ICS-1100, Operator'S Manual

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Dionex ICS-1100 Ion Chromatography System
22
Doc. 065289-03 10/12
Flow Description for RFIC-ER Mode
•
Eluent from the eluent reservoir

flows first through the pump degas
assembly (if it is installed) and then through the eluent valve

to the pump

.
The eluent is then pushed through the pressure transducer

, which measures
the system pressure.
•
From there, the eluent is pushed through a pulse damper

, which smooths
minor pressure variations from the pump to minimize baseline noise. The
eluent then flows through the ER1 column

and into the injection valve

.
•
After sample is loaded into the sample loop

and the injection valve is
toggled to the Inject position, eluent passes through the sample loop.
•
If the optional column heater is installed, the eluent/sample mixture is
pumped through the heat exchanger

, which heats the mixture to the column
heater temperature.
•
The mixture then goes to the guard and separator columns

and through the
suppressor .
•
From the suppressor, the mixture flows through the cell , where the analytes
are detected. A digital signal is sent to Chromeleon software. Analog output
can be collected simultaneously.
•
Finally, the mixture flows out of the cell, through the ER2 column , and is
then recycled back into the suppressor.
•
From the suppressor, flow moves to the ER3a and ER3b columns, which
remove contaminants from the eluent.
•
The ERC 10 monitors the eluent for gas and shuts down the pump if the gas
exceeds a pre-defined limit.
•
Finally, the output from the ERC 10 is recycled back to the eluent bottle.
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