IonPacAS9-SC
034656-06
Page 4 of 28
Always remember that assistance is available for any problem that may be encountered during the shipment or
operation of DIONEX instrumentation and columns through the DIONEX North America Technical Call Center
at 1-800-DIONEX-0 (1-800-346-6390) or through any of the DIONEX Offices listed in, “DIONEX Worldwide
Offices.”
SECTION 1 - INTRODUCTION
The IonPac® AS9-SC Analytical Column (P/N 043185) is designed for the analysis of inorganic anions including oxyhalides,
such as chlorate, chlorite and bromate.
The 4 x 250 mm IonPac AS9-SC Analytical Column has an ion exchange capacity of approximately 30
μ
eq/column. This resin
is composed of a highly cross-linked (55%) 13 micron polyethylvinylbenzene/divinylbenzene substrate agglomerated with anion
exchange latex that has been completely aminated. The latex has a polyacrylate backbone and carries the actual ion exchange sites.
The IonPac AS9-SC has nominal efficiency for sulfate using standard operating conditions of at least 14,000 plates/meter.
The IonPac AS9-SC can be operated at flow rates up to 3.0 mL/min with eluents that have a pH between 2 and 11. Eluents may
contain organic solvents from 0 - 100% in concentration. Optimally, the IonPac AS9-SC should operate at a backpressure less
than 1,100 psi at 1.0 mL/min. However, the column is capable of operating at backpressures up to 4,000 psi.
CAUTION
Eluent pH must be maintained between 2-11 or irreversible damage to the column will result.
Table 2
AS9-SC/AG9-SC Operating Parameters
Column
Typical Back Pressure
Standard
Maximum
psi (MPa) at 30°C
Flow Rate
Flow Rate
mL/min
mL/min
AS9-SC (4 x 250 mm) Analytical
< 950 (6.55)
1.0
3.0
AG9-SC (4 x 50 mm) Guard
< 225 (1.55)
1.0
3.0
AS9-SC Analytical Guard
<
1175 (8.10)
1.0
3.0
Table 1
AS9-SC/AG9-SC Packing Specifications
Column
Particle
Substrate
Latex
Latex
Column
Functional Hydrophobicity
Diameter
X-Linking
Diameter
X-Linking
Capacity
Group
μ
m
%
nm
%
μ
eq/column
AS9-SC
13
55
110
20
30-35
Alkyl
Medium-low
(4 x 250 mm)
quaternary
ammonium
AG9-SC
13
55
110
20
6-7
Alkyl
Medium-low
(4 x 50 mm)
quaternary
ammonium
