Metrohm 850 Professional IC Anion MCS Prep 3 - Manual (Page 55)

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2 Installation
850 Professional IC –Anion – MCS – Prep 3
￭￭￭￭￭￭￭￭ 45
￭ The analyte ions are retained on the preconcentration column
(27-D) while the transfer solution flows to the waste container.
A B C
D
1 2
Figure 27 Neutralization and preconcentration
1 Sample 2 Transfer solution
A Injection valve 1 B SPM
C Injection valve 2 D Preconcentration column
3 Injection and sequential suppression
￭ Injection valve 2 is switched:
– Injection valve 1 still is in position Inject.
– Injection valve 2 (28-C) in position Inject.
￭ With the eluent flow (28-3) the analyte ions retained on the pre-
concentration column (28-D) are rinsed onto the separation col-
umn (28-E).
￭ The sequential suppression with the MSM (28-F) and the MCS fol-
lows after the separation.
C F
D E
3
Figure 28 Injection and sequential suppression
3 Eluent C Injection valve 2