Doc. 031851-05 12/04 3-1
3 • Operation and Maintenance
ICS-90 Ion Chromatography System operation is controlled through Chromeleon
software. However, three functions take place at the instrument:
• Eluent and regenerant preparation and/or reservoir installation
• On/off power control
• Manual sample or standard injection
The ICS-90 Ion Chromatography System is designed for IC (ion chromatography)
applications and should not be used for any other purpose. Operation of the
ICS-90 in a manner not specified by Dionex may result in personal injury.
3.1 Preparing the Eluent
For instructions on preparing the eluent, refer to the column manual, which is
included on the Dionex Reference Library CD-ROM (P/N 055405) in the
ICS-90 Ship Kit.
3.2 Preparing the Regenerant
The type of regenerant used with the ICS-90 depends on the type of analysis to be
run. A dilute sulfuric acid regenerant is used for anion analyses and a
tetrabutylammonium hydroxide (TBAOH) regenerant is used for cation analyses.
Follow the instructions below to prepare either anion or cation regenerant.
1. Fill the regenerant reservoir (anion, P/N 057712; cation, P/N 057713) about
halfway with ASTM filtered, Type I (18-megohm) deionized (DI) water.
For acid concentrates (such as the anion regenerant), always pour the
concentrate into deionized water, not into the empty reservoir.
Pour les concentrés acides (comme le régénérant anionique), versez
toujours le concentré dans de l'eau désionisée et non dans le
réservoir vide.
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