1
– Introduction
Thermo Scientific
Product Manual for the ERS 500 Suppressor
Page 19 of 84
031956-11
For Research Use Only. Not for Use in Diagnostic Procedures.
transport of ions is neutralization of the sample matrix ions to a weakly ionized form while the
sample anions are typically converted to a strongly ionized form. The sample anions are now in
a weakly dissociated matrix such as water and are ready for analysis.
In the Dionex CERS 500 hydroxide is transported from the cathode towards the anion and enters
the sample chamber. At the same time, the matrix anions in the sample move towards the anode
and enter the anode chamber. The matrix anions combine with the hydronium ions at the anode
forming an acid and are removed from the regenerant chamber. The net effect of this transport
of ions is neutralization of the sample matrix ions to a weakly ionized form, while the sample
cations are typically converted to a strongly ionized form. The sample cations are now in a
weakly dissociated matrix such as water and are ready for analysis
1.2.6.2
Trace Ion Analysis After Neutralization
After neutralization, the sample can be fed into any Dionex Ion Chromatography system and
operated in the concentrator mode. It is important that only low pressure concentrator columns,
such as the Dionex UTAC-XLP2 (Item # 072781) and Dionex TCC-XLP1 (Item # 063889), be
used to protect the Dionex ERS 500 from damage.
1.3
Shipment and Storage
1.3.1
Shipment
The Electrolytically Regenerated Suppressors (Dionex ERS 500, Dionex ERS 500e, and
Dionex AERS 500 Carbonate) should not be subjected to temperatures above 50°C for long
durations during shipment, storage or operation, or for any duration above 80°C.
1.3.2
Storage
Ensure the suppressor is stored in a temperature controlled environment away from direct
exposure to sunlight or other sources of heat. Do not store the suppressor in an
environment where temperatures in excess of 50°C may be experienced, such as a parked
car.
CAUTION
!
CAUTION
!
