For Trace-Level Concentrations of Inorganic Anions and Low-Molecular Weight Organic Acids
The IonPac® AS15 column was designed specifically for analysis of trace anions in high-purity water matrices, for the semiconductor and power generation industries. Its high capacity and selectivity enable the determination of trace-level concentrations of inorganic anions and low-molecular-weight organic acids in high-purity water matrices. The new IonPac AS15 Capillary Column is packed with the same material as the equivalent standard bore version (providing the same performance as a 4 mm column) but requires only 1/100th the eluent flow rate. The capillary format provides the advantage of significantly reduced eluent consumption, which helps reduce operating costs.
- AS15-5μm (3 × 150 mm) column for high efficiency, fast analysis (15 min)
- AS15-9μm (2 × 250, 4 × 250 mm, and 0.4 × 250 mm) columns for higher-capacity applications
- Column selectivity optimized for 30 °C operating temperature
- Superior resolution of early-eluting anions (fluoride, glycolate, acetate, and formate)
This column is ideal for use with large-loop injections. Use the AC15 concentration column for ultratrace (ppt) analyses. Use with eluent generation for simplified eluent preparation. Use the Anion Self-Regenerating Suppressor® (ASRS® 300) or the Anion Capillary Electrolytic Suppressor (ACES™ 300) with the AS15 column for eluent suppression.
| IonPac® AS15 Anion-Exchange Column Specifications |
|---|
| Dimensions | IonPac AS15 Capillary Column:
0.4 × 250 mm
IonPac AS15 Capillary Guard Column:
0.4 × 50 mm
IonPac AS15 Analytical Column:
2 × 250 mm, 3 × 150 mm, and 4 × 250 mm
IonPac AG15 Guard Column:
2 × 50 mm, 3 × 30 mm, and 4 × 50 mm
IonPac AC15 Concentrator Column:
2 × 50 mm and 4 × 50 mm |
| Maximum operating pressure | 4000 psi (standard or microbore)
5000 psi (capillary) |
| Mobile phase compatibility | pH 0–14; 0–100% HPLC solvents |
| Substrate characteristics | Bead Diameter: 5 µm (3 × 150 mm),
9 µm (0.4 × 250, 2 × 250 mm and 4 × 250 mm),
13 µm (AC15),
Pore Size: 100 Å (AS15, AG15), microporous, <10 Å (AC15)
Crosslinking (%DVB): 55% |
| Latex characteristics (AC15) | Latex Crosslinking: 6%
Latex Diameter: 85 nm |
| Ion-exchange group | Surface-functionalized with alkanol quaternary ammonium ion (AS15, AG15)
Latex-functionalized with alkanol quaternary ammonium ion (AC15) |
| Functional group characteristics | Medium-high hydrophobicity (AS15, AG15) Very low hydrophobicity (AC15) |
| AC15 void volume | 2 × 50 mm: 9 µL, 4 × 50 mm: 210 µL |
| Column construction | PEEK® with 10-32 threaded ferrule-style end fittings.
All components are nonmetallic. |
| Capacity | 2.25 µeq (0.4 × 250 mm capillary column)
0.45 µeq (0.4 × 50 mm capillary guard)
56.25 µeq (2 × 250 mm analytical column)
11.25 µeq (2 × 50 mm guard column)
2.2 µeq (2 × 50 mm concentrator column)
70 µeq (3 × 150 mm analytical column)
14 µeq (3 × 30 mm guard column)
225 µeq (4 × 250 mm analytical column)
45 µeq (4 × 50 mm guard column)
9 µeq 4 × 50 mm concentrator column) |
Separation of inorganic anions at trace concentrations using the IonPac AS15 Capillary Column.
Comparison of IonPac AS15-5µm (3 × 150 mm), AS15-9µm (4 × 250 mm), and AS15-9µm (0.4 × 250 mm) columns for separation of inorganic anions.
Determination of inorganic anions and low-molecular-weight organic acids with sample preconcentration using the IonPac AS15 column.
Separation of weakly-retained organic acids using a potassium hydroxide gradient on the IonPac AS15-5 µm (3 × 150 mm) column.
Analysis of industrial waste water sample using IonPac AS15-5μm and AS15-9μm Columns.
Determination of trace levels of chloride and sulfate in high purity-water using a large-loop injection and the IonPac AS15-5μm (3 × 150 mm) column
Determination of inorganic anions and low-molecular-weight organic acids in high-purity water on an IonPac AS15-5μm (3 × 150 mm) column.
| Analytical Columns |
|---|
| IonPac AS15 Analytical Column (4 x 250 mm) |
053940 |
| IonPac AS15 Analytical Column (2 x 250 mm) |
053941 |
| IonPac AS15-5 µm Analytical Column (3 × 150 mm) |
057594 |
| IonPac AS15 Capillary Column (0.4 x 250 mm) |
075662 |
| Guard Columns |
|---|
| IonPac AG15 Guard Column (4 x 50 mm) |
053942 |
| IonPac AG15 Guard Column (2 x 50 mm) |
053943 |
| IonPac AS15-5 µm Guard Column (3 × 30 mm) |
057597 |
| IonPac AG15 Capillary Guard Column (0.4 x 50 mm) |
075663 |
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