ICS-90 Ion Chromatography System
2-8 Doc. 031851-05 12/04
Temperature directly affects the conductivity of a solution. For example,
laboratory heating and air conditioning systems can cause a regular slow
cycling in the baseline. This, in turn, can affect the reproducibility of an
analysis. The higher the conductivity, the more pronounced the effect.
In ion analysis, the effect of temperature variation is minimized by
suppressing eluent conductivity. Built-in preset temperature
compensation also ensures that there is no major change in the baseline or
in peak heights. Temperature compensation
further improves baseline
stability.
Direct conductive heating is used in the ICS-90 to provide temperature
control and compensation. A heat exchanger inside the ICS-90 cell
regulates the temperature. All data is collected at 40 °C (104 °F).
Figure 2-4. DS5 Detection Stabilizer
To ELUENT OUT por
on suppressor
regenerant reservoir
CELL OUT to
Connector to component
mounting panel
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