Dionex™ IonPac™ AS31 Analytical and Guard Columns
Increase your sample throughput and lab productivity with this anion-exchange column that can separate 9 haloacetic acids in drinking water in approximately 35 minutes.
| Catalog Number | Length (Metric) | Particle Size | Column Type |
|---|---|---|---|
| 303147 | 250 mm | 6 μm | Analytical Column |
| 303148 | 50 mm | 11 μm | Guard Column |
Achieve faster separation of haloacetic acids (HAAs), bromate, and dalapon in drinking water prior to detection with ion chromatography (IC) and mass spectrometry (MS) with the new Thermo Scientific™ Dionex™ IonPac™ AS31 column. Specifically designed for fast analysis, the Dionex IonPac AS31 provides approximately 39% shorter run times relative to the Dionex IonPac AS24, reducing U.S. EPA Method 557 run time from 57 minutes to approximately 35 minutes. This new hydroxide-selective anion-exchange column has relatively high capacity to allow large loop injections for trace analysis (μg/L) without sample pre-treatment.
- Can meet or exceed the performance requirements of U.S. EPA Method 557.
- High capacity (116 μeq/column) allows injection of complex matrices without overloading the column while maintaining excellent peak shapes for lower concentration analytes.
- Requires no sample pre-treatment when determining haloacetic acids in high-ionic strength matrices.
- Column selectivity has been optimized at an operating temperature of 15°C to ensure reproducible recovery for haloacetic acids.
A high-pressure IC system, such as the Thermo Scientific™ Dionex™ ICS-5000+ HPIC™ system or Dionex ICS-6000 HPIC system is required to operate this column under standard conditions.