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4
– Example Applications
Figure 6
Column:
Dionex IonPac AG32-Fast-4µm (2 x 30 mm) /
Dionex IonPac AS32-Fast-4µm (2 x 150 mm)
Eluent :
4 mM KOH from 0 to 4 minutes,
4-40 mM KOH from 4 to 10 minutes,
40-80 mM KOH from 10 to 14 minutes,
80 mM KOH from 14 to 20 minutes
Flow Rate:
0.25 mL/min
Inj. Volume:
2.5 µL
30˚C
Temperature:
Detection:
Suppressed Conductivity,
Dionex AERS 500, 2mm
AutoSuppression, recycle mode
Suppressor Current
50 mA
4
µS
0
0
Thermo Scientific
065763-01
Analysis of Aromatic Sulfonates, Pigments, and Dyes Using the Dionex
IonPac AS32-Fast-4µm Column (2 x 150 mm)
3
1
2
5
Product Manual for Dionex IonPac AS32-Fast-4µm Columns
For Research Use Only. Not for use in diagnostic procedures.
Peaks
1. p-Toluenesulfonic acid
2. 2-Naphthalenesulfonic acid
3. 4-Sulfobenzoic acid
4. 1-Naphthol-4-sulfonic acid
5. Naphthalene-disulfonic acid
6. Naphthalene-trisulfonic acid
7. FDC Yellow #5
8. FDC Yellow #6
9. FDC Red #40
5
4
6
7
10
15
Minutes
mg/L
25
25
25
25
25
25
25
25
25
8
9
20
Page 21 of 42
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