| Certifications/Compliance | Method 300.0 and 300.1 |
|---|---|
| Column Chemistry | Hydroxide |
| Column Construction | PEEK |
| Flow Rate | 1.0 to 1.5 mL/min. |
| For Use With (Application) | Anion Exchange |
| For Use With (Equipment) | Dionex IonPac AS19-4μm Analytical Column |
| Green Features | FSC |
| Max. Pressure | 5000 psi (345 bar) |
| Quantity | Each 1 |
| Solvent Compatibility | pH 0 to 14, 0 to 100% HPLC Solvents |
| Solvents | 0 to 100% of HPLC Solvents |
| Column Type | Guard Column |
| Diameter (Metric) | 4 mm |
| Format | Standard Bore |
| Length (Metric) | 50 mm |
| pH | 0 to 14 |
| Unit Size | Each 1 |
Answer:This configuration is 4 mm ID × 50 mm long.
Answer:It is designed for use ahead of the Dionex IonPac AS19-4 µm standard-bore analytical column.
Answer:It traps strongly retained matrix contaminants while preserving the AS19-4 µm separation chemistry.
Dionex™ IonPac™ AG19-4 µm is the 4 × 50 mm guard column paired with the standard-bore AS19-4 µm analytical column. The guard format uses the same hydroxide-selective anion-exchange chemistry to preserve selectivity while trapping strongly retained contaminants before they reach the analytical column. It is designed for high-resolution analysis of trace oxyhalides and inorganic anions in drinking-water and environmental matrices, including bromate workflows associated with U.S. EPA Methods 300.0 and 300.1. The column uses PEEK construction, supports a pH range of 0–14 and 0–100% HPLC-compatible solvents, and is rated to 5000 psi. It is supplied as one replaceable guard column.
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