2 • Description
Doc. 031851-05 12/04 2-11
Pump
The ICS-90 uses a high-speed reciprocating pump with PEEK
components. The flow rate can be set to between 0.5 and 4.5 mL/min. The
recommended operating flow rate is between 0.5 and 2.0 mL/min.
Prime Valve
The prime valve is mounted on the pump head. The pump should be
primed at installation and whenever the flow rate seems outside normal
parameters. For priming instructions, see Section B.13
.
Separator and Guard Columns
Both the separator and guard columns are packed with resin filling and
perform the separation of the sample ions. However, the main function of
the guard column is to absorb organic contaminants and remove
particulates that might poison the separator column.
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