| Anion Exchange Capacity | 60 μeq |
|---|---|
| Certifications/Compliance | U.S. EPA Methods 300.0 and 300.1 |
| Column Capacity | 60 μeq |
| Column Chemistry | Hydroxide |
| Column Construction | PEEK |
| Crosslinking | 55% DVB |
| Flow Rate | 0.25 to 0.38 mL/min. |
| For Use With (Application) | Anion Exchange |
| For Use With (Equipment) | Dionex IonPac AS19-4μm Guard Column |
| Green Features | FSC |
| Hydrophobicity | Ultralow |
| Ion Exchange Group | Alkanol Quaternary Ammonium Ion |
| Max. Pressure | 5000 psi (345 bar) |
| Packing Material | Polymeric |
| Particle Size | 4 μm |
| Quantity | Each 1 |
| Solvent Compatibility | pH 0 to 14, 0 to 100% HPLC Solvents |
| Stationary Phase | IonPac AS19-4μm |
| Column Type | Analytical Column |
| Diameter (Metric) | 2 mm |
| Format | Microbore |
| Length (Metric) | 250 mm |
| Unit Size | Each 1 |
Answer:It is a 2 × 250 mm analytical column.
Answer:The anion-exchange capacity is 60 µeq.
Answer:It is designed for trace bromate, oxyhalides, and other inorganic anions in drinking water.
Dionex™ IonPac™ AS19-4μm IC Columns is designed for high-resolution anion-exchange ion chromatography of trace oxyhalides and common inorganic anions in drinking water. This exact version is the 2 × 250 mm microbore analytical column with 4 µm polymeric packing, rather than the 50 mm guard format. Its hydroxide-selective phase is optimized for low-µg/L bromate analysis in matrices where bromate can form during ozone disinfection. The column has an anion-exchange capacity of 60 µeq and uses an alkanol quaternary ammonium ion-exchange group on a polymeric support with PEEK column construction. Recommended flow is 0.25–0.38 mL/min, maximum operating pressure is 5000 psi (345 bar), and solvent compatibility spans pH 0–14 and 0–100% compatible HPLC solvents. The phase supports methods meeting the performance needs of US EPA Methods 300.0 and 300.1. Its smaller 4 µm particles deliver efficient separation and reliable peak integration compared with earlier AS19 configurations, supporting bromate monitoring and related environmental-water testing. A matching 2 mm guard column can protect this analytical separation when required.
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