Product Manual for IonPac CS16
Page 32 of 65
B. CS16
3-mm
The following shows a ratio of 10,000:1 of sodium to ammonium on the CS16 3-mm using an isocratic eluent. Either a
smaller sample loop size than with a CS16 5-mm should be used or the sample should be diluted not to overload the column.
Column:
IonPac CS16 3-mm Analytical Column (no guard)
Sample Volume:
25 µL Loop
Eluent:
30 mM Methanesulfonic acid (MSA)
Eluent Flow Rate:
0.36 mL/min
Temperature: 40
°C
SRS Suppressor:
Cation Self-Regenerating Suppressor 300 (2-mm) in
AutoSuppression Recycle Mode, with CTC-1 between
CELL OUT
and
REGEN IN
ports
or MMS Suppressor:
Cation MicroMembrane Suppressor, CMMS 300 (2-mm)
MMS Regenerant:
TBAOH
MMS Mode:
Displacement Chemical Regeneration (DCR)
Expected Background Conductivity:
< 2 µS
Storage Solution:
Eluent
0
2
4
6
8
10
0.360
0.420
0.480
0.540
2
A
Analytes: mg/L
(ppm)
1. Sodium
100.00
2. Ammonium
0.01
µS
Minutes
0
2
4
6
8
10
0.330
0.370
0.410
0.450
2
B
Analytes: mg/L
(ppm)
1. Sodium
33.3
2. Ammonium
0.0033
µS
Minutes
Figure 17
Trace-level Quantification of Ammonium in Brine (10,000:1 ratio)
Document No. 031747-05
© 2010 Dionex Corporation
December 2010
