1
– Introduction
Thermo Scientific
Product Manual for the ERS 500 Suppressor
Page 15 of 84
031956-11
For Research Use Only. Not for Use in Diagnostic Procedures.
Figure 3
AutoSuppression with the Dionex CERS 500
1.2
Overview of Suppression and Neutralization Modes
Four basic modes of suppression can be performed with the Dionex Electrolytically
Regenerated Suppressor (Dionex ERS 500, Dionex ERS 500e and Dionex AERS 500
Carbonate):
AutoSuppression Recycle Mode
AutoSuppression External Water Mode
MPIC Suppression Mode
Neutralization Mode
The Dionex ERS 500 is not compatible with the Chemical Suppression Mode. The Dionex
CRS 500 or equivalent should be used when Chemical Suppression Mode is required.
NOTE
!
CSRS 300 in AutoSuppression Mode
ANODE
+
CATHODE
-
ANALYTE IN H
+
MSA
-
ELUENT
(MSA)
Waste/Vent
MSA + O
2
H
2
O + H
2
Waste/Vent
H
2
O
H
2
O
ANALYTE IN H
2
O
TO DETECTOR
3H
2
O
2 H
2
O
2H
3
O
+
+ ½ O
2
(g)
H
2
+ 2 OH
-
[H
+
+ OH
-
]
H
2
O
H
+
+ MSA
-
MSA
-
+ H
+
OH
-
Dionex CERS 500 in AutoSuppression Mode
