3 • Operation and Maintenance
Doc. 065215-02 9/09 31
4. Determine the regenerant concentration required for the application. To
estimate the regenerant concentration required for an eluent strength, use the
following formulas:
Anion Regenerant Concentration = (mM eluent) x 2
Cation Regenerant Concentration = (mM eluent) x 5
For example, if you are using 20 mM methanesulfonic acid (MSA) as the
eluent for cation analysis, use a regenerant concentration of 100 mM
tetrabutylammonium hydroxide (TBAOH).
For additional details, refer to the Displacement Chemical Regeneration
(DCR) kit installation instructions and the suppressor manual.
5. Empty the required amount of concentrate (sulfuric acid for anions; TBAOH
for cations) into the bottle.
For acid concentrates (such as the anion regenerant), always pour the
concentrate into deionized water, not into the empty bottle.
Pour les concentrés acides (comme le régénérant anionique), versez toujours le
concentré dans de l'eau désionisée et non dans le réservoir vide.
Gießen Sie säurehaltige Konzentrate (beispielsweise den Anionregenerenten)
das Konzentrat immer in entionisiertes Wasser und nicht in den leeren Behälter.
6. Fill the bottle almost to the top with deionized water and then place the bottle
in the tray on the top of the ICS-900.
NOTE To avoid staining the ICS-900, be careful not to spill
TBAOH on the instrument.
7. Using the concentrate bottle, pour additional deionized water into the bottle
until it is completely filled to the top. If a few drops spill over, then it is full
enough.
The regenerant bottle must be filled all the way to the top at all times.
8. Insert the stopper assembly tubing into the bottle and hand-tighten the cap.
9. Invert the bottle three or four times to disperse the concentrate.
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