Product Manual for IonPac CS16
Page 64 of 65
I. Column Cleanup Procedure for Polyvalent Cations and Acid-Soluble Contaminants or Transition Metals
A.
Prepare 500 mL of 1 M HCl for the cleanup solution. Alternatively prepare 500 mM oxalic acid to remove transition
metals such as iron or aluminum contamination.
CAUTION
!
Nitric acid should not be used instead of hydrochloric acid since nitric acid will not effectively remove iron
contaminants. Do not clean the column with alcohols or with basic eluents.
B.
Disconnect the Suppressor from the IonPac CS16 Analytical or Capillary Column.
If your system is configured
with both a guard column and an analytical column, place the guard behind the analytical column in the eluent flow
path. Double check that the eluent flows in the direction designated on each of the column labels.
When cleaning an analytical column and a guard or capillary column in series, ensure that the guard column is
placed after the analytical/capillary column in the eluent flow path. Contaminants that have accumulated on the
guard column can be eluted onto the analytical or capillary column and irreversibly damage it. If in doubt,
clean each column separately.
NOTE
!
DO NOT pump hydrochloric acid through the CSRS 300
C. Set
the pump flow rate
to 1.0 mL/min for a CS16 5-mm Analytical or Guard Column and to 0.36 mL/min for a
CS16 3-mm Analytical or Guard Column. Set the pump flow rate to 0.010 mL/min for a CS16 Capillary or Capillary
Guard Column.
D.
Rinse the column for 15 minutes with 10 mM HCl
before pumping the chosen cleanup solution over the column.
E. Pump the cleanup solution (1 M HCl or 500 mM oxalic acid) through the column for 60 minutes.
F.
Rinse the column for 15 minutes with 10 mM HCl
before pumping eluent over the column.
G.
Equilibrate the column(s) with eluent
for at least 5–10 minutes before resuming normal operation (send effluent to
waste).
H.
Reconnect the Suppressor to the CS16 Analytical or Capillary Column and place the guard column in line
between the injection valve and the analytical or capillary column if your system was originally configured with a
guard column.
I.
Equilibrate the system
with eluent before resuming normal operation.
CAUTION
!
Do not pump HCl through the CSRS 300 when used in the electrolytic mode.
II. Hydrophobic Cations and Organic Contaminants
A. Disconnect the analytical/capillary column from the injection valve and the suppressor. Disconnect the Gradient
Mixer or the Cation Trap Column (CTC-1) from the pump. Connect the IonPac CS16 Analytical/Capillary Column
directly to the pump. Direct the effluent from the analytical column directly to a waste container.
B. Set the flow rate to 1 mL/min for a CS16 5-mm Analytical or Guard Column and to 0.36 mL/min for a CS16
3-mm Analytical or Guard Column. Set the pump flow rate to 0.010 mL/min for a CS16 Capillary or
Capillary Guard Column.
Document No. 031747-05
© 2010 Dionex Corporation
December 2010
Содержание IonPac CG16
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