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IonPac AS24 Hydroxide-Selective Anion-Exchange Column
For Separation of Haloacetic Acids and Bromate in Drinking Water
The Thermo Scientific Dionex IonPac? AS24 is a high-capacity hydroxide-selective anion-exchange column optimized for the separation of haloacetic acids (HAAs) as well as a variety of environmental anions. The capacity and selectivity enables analysis of haloacetic acids in drinking water at low-μg/L concentrations. The Dionex IonPac AS24 2 × 250 mm column is specifically designed for separation of haloacetic acids in drinking water prior to MS or MS/MS detection and is the specified column in US EPA Method 557.
- Specified column for US EPA Method 557 (2 × 250 mm)
- High capacity: 140 μeq per column (2 × 250 mm)
- Determine HAAs in high-ionic strength matrices without sample pretreatment
- Column selectivity is optimized for a 15 ?C operating temperature
- Compatible with HPLC organic solvents
- Used as second dimension column in 2-D method for bromate in US EPA Method 302.0 (2 × 250 mm)
- Extended application capabilities providing excellent separation of environmental anions
| Thermo Scientific Dionex IonPac? AS24 Anion-Exchange Column Specifications | |
|---|---|
| Substrate Characteristics: | Bead Diameter and Pore Size: 7 ?m (2 × 250 mm); super macroporous resin (2000 ?) 11 ?m (2 × 50 mm); microporous resin (<10 ?) Crosslinking (%DVB): 55% |
| Ion Exchange Group: | Functional Group: Alkanol quaternary ammonium ion |
| Functional Group Characteristics: | Ultralow hydrophobicity |
| Capacity: | 140 ?eq (2 × 250 mm analytical column) 1.5 ?eq* (2 × 50 mm guard column) *Guard is packed with a low-capacity microporous resin. |
| Column Construction: | PEEK? with 10-32 threaded ferrule style end fittings. All components are nonmetallic. |
| Dimensions: | Dionex IonPac AS24 Analytical Column: 2 × 250 mm Dionex IonPac AG24 Guard Column: 2 × 50 mm |
| Maximum Operating Pressure: | 3000 psi |
| Phase Compatibility: | pH 0–14; 0–100% HPLC solvents |
| Analytical Columns | |
|---|---|
| IonPac AS24 Analytical Column (2 x 250 mm) | 064153 |
| Guard Columns | |
|---|---|
| IonPac AG24 Guard Column (2 x 50 mm) | 064151 |
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