ICS-900 Operator’s Manual
30 Doc. 065215-02 9/09
3.5 Preparing the Regenerant
The type of regenerant used with the ICS-900 depends on the type of analysis to
be run. A dilute sulfuric acid regenerant is used for anion analyses; a
tetrabutylammonium hydroxide (TBAOH) regenerant is used for cation analyses.
Follow the instructions below to prepare either anion or cation regenerant.
Use ASTM Type I (18 megohm-cm) filtered and deionized water to prepare the
regenerant.
1. Verify that you have the correct regenerant bottle assembly (P/N 068222 for
anion analyses; P/N 068223 for cation analyses):
• For anions, verify that the cap is labeled ANION and the REGEN BOTTLE
OUT
line extends to the bottom of the bottle.
• For cations, verify that the cap is labeled CATION and the REGEN BOTTLE
OUT line extends only about 1 cm (0.4 in) into the bottle.
2. Rinse the regenerant bottle with deionized water.
3. Fill the bottle about halfway with deionized water.
For the eluent level to be accurate, you must enter the level each time
the bottle is filled.
Figure 3-3. Setting the Eluent Level
After filling the eluent
bottle, move the slider to
indicate the volume of
liquid in the bottle
Note: The Eluent
Remaining slider and
gauge are updated as the
liquid is used up.
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