Product Manual for IonPac CS16
Page 35 of 65
5.11.
Analysis of Waste Water at 40 °C
Wastewater samples generally contain more diverse concentration ratios of sodium and ammonium, as shown in the example
below. The calculated sodium-to-ammonium ratio is 6800:1. Furthermore, wastewater samples may contain amines and
transition metals which can potentially interfere with the analysis of the common cations. The high capacity CS16 column
minimizes the chance to overload the column and offers a greater chance of resolving the sample’s component peaks.
Column:
IonPac CS16 5-mm Analytical Column (no guard)
Sample Volume:
25 µL Loop
Sample Dilution:
0.5 : 100
Eluent:
30 mM Methanesulfonic acid (MSA)
Eluent Flow Rate:
1.0 mL/min
Temperature: 40
°C
SRS Suppressor:
Cation Self-Regenerating Suppressor 300 (4-mm) in
AutoSuppression Recycle Mode
or MMS Suppressor:
Cation MicroMembrane Suppressor, CMMS 300 (4-mm)
MMS Regenerant:
TBAOH
MMS Mode:
Displacement Chemical Regeneration (DCR)
Expected Background Conductivity:
< 2 µS
Storage Solution:
Eluent
0
5
10
15
20
25
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
5
4
3
1
2
0.3
µS
1.0
10
0
15
Minutes
5
20
25
Analyte mg/L
*
1. Sodium
27.85
2. Ammonium
4.1
3. Potassium
44.8
4. Magnesium
49.8
5. Calcium
10.6
where 1 mg/L = 1 ppm
* (Calculated in Original Sample)
Figure 20
IonPac CS16 5-mm Analysis of Waste Water
Document No. 031747-05
© 2010 Dionex Corporation
December 2010
