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IonPac CS14 Manual
6
4
μ S
2
0
0
Doc. No. 034848-10
10
9
1
12
2
7 8
11
4 5
6
3
10
Minutes
Figure 17
Methanesulfonic Acid / 18-Crown-6 Gradient Elution of
Alkanolamines, Group I & II Cations
Analyte
+
1.
Li
+
2.
Na
3.
Diethanolamine
4.
Methylaminoethanol
5.
Triethanolamine
6.
1-(Dimethylamino)-2-propanol
7.
Diethylaminoethanol
8.
N-(n-propyl)diethanolamine
2+
9.
Mg
2+
10. Ca
11. Ethanolamine
+
12. NH
4
+
13. K
1 mg/L = 1 ppm
* Identified as a sample impurity
13
20
30
Page 39 of 54
mg/L
0.5
2.0
*
5.0
200.0
10.0
10.0
30.0
0.5
1.0
5.0
2.5
5.0
40
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