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Thermo Scientific™ Dionex™ IonPac™ AS22 IC Columns
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Specifications:
| Application | Ion Exchange Chromatography |
| Storage Temperature | Ambient |
| Product Type | columns |
| Product Brand | Thermo Fisher Scientific™ |
| Product Grade | Analytical grade |
The Thermo Scientific™ Dionex™ IonPac™ AS22 IC Columns are high-capacity, anion-exchange columns specifically designed for routine compliance monitoring of common inorganic anions using a carbonate/bicarbonate eluent. Optimized for U.S. EPA Method 300.0 (A), these columns provide fast, isocratic separation of anions such as fluoride, chloride, nitrite, bromide, nitrate, phosphate, and sulfate in drinking water, wastewater, and other environmental matrices.
The AS22 platform supports a broad range of applications, from simple matrix samples to complex process streams, with options in both analytical and guard formats to suit different throughput and resolution needs.
Key Features and Benefits
- Optimized for EPA Method 300.0 (A) for regulatory water analysis
- Fast separations: Common anions in simple matrices resolved in 8 minutes; complex matrices in 12 minutes
- Excellent resolution of fluoride, acetate, formate, and carbonate peaks
- Isocratic operation—no gradient pumps or complex programming required
- Broad solvent and pH compatibility for method development and column cleanup
- Available in 4 mm and 2 mm formats for high-throughput or high-sensitivity needs
- Green packaging for environmentally conscious labs
Column Chemistry
| Stationary Phase | IonPac AG22 or AS22 |
|---|---|
| Eluent Compatibility | Carbonate/Bicarbonate (e.g., 4.5 mM Na₂CO₃ / 1.4 mM NaHCO₃) |
| Hydrophobicity | Ultralow |
| pH Range | 0–14 |
| Max Pressure | 3000 psi (207 bar) |
| Particle Size | 11 µm |
| Column Capacity | 6 μeq |
Available Formats
| Catalog # | Description | Length | Diameter | Column Type |
|---|---|---|---|---|
| 064139 | IonPac AG22 Guard Column | 50 mm | 4 mm | Guard Column |
| 064135 | IonPac AG22 Guard Column | 50 mm | 2 mm | Guard Column |
| 064141 | IonPac AS22 Analytical Column | 250 mm | 4 mm | Analytical Column |
| 064137 | IonPac AS22 Analytical Column | 250 mm | 2 mm | Analytical Column |
Note: Use IonPac AS22 Eluent Concentrate for simplified, accurate eluent preparation.
Applications
- Regulatory compliance testing for anions in drinking water and wastewater
- Environmental monitoring of groundwater, surface water, and industrial effluents
- Analysis of inorganic acids and low molecular weight organic acids (e.g., formate, acetate)
- Routine water quality testing in municipal and laboratory settings
- Industrial process stream analysis including scrubber solutions and rinse waters
Specifications (Guard Column Example)
| Parameter | Value |
|---|---|
| Column Type | Guard Column, Analytical Column |
| Stationary Phase | IonPac AG22 |
| Length | 50 mm, 250 mm |
| Diameter | 4 mm, 2 mm |
| Format | Standard Bore |
| Compatibility | IonPac AS22 analytical columns |
| Solvent Compatibility | pH 0–14; 0–100% HPLC solvents |
| Certifications | Compliant with U.S. EPA Method 300.0 (A) |
| Unit Size | Each |
The Dionex™ IonPac™ AS22 IC Columns offer reliable, validated performance for the routine separation of common inorganic anions using a simple carbonate/bicarbonate eluent. Their compatibility with EPA-approved methods, low maintenance requirements, and robust separation performance make them an ideal solution for compliance laboratories, environmental monitoring, and water quality analysis.
- Column Dimension: Guard Column, 50 mm x 4 mm Analytical Column, 250 mm x 2 mm Analytical Column, 250 mm x 4 mm Guard Column, 50 mm x 2 mm