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面议The IonPac® AS14A anion-exchange column is a carbonate-based column for fast analysis of the common inorganic anions in diverse sample matrices. The AS14A meets the performance requirements specified in US EPA Method 300.0 (A).
High efficiency and fast analysis (8 minutes)
High-capacity applications (13 minute run time)
Improved peak shape, efficiency, and pH stability
Meets or exceeds US EPA Method 300.0 (A) performance requirements
Simplified operation with AS14A Eluent Concentrate and Combined Seven Anion Standard
The AS14A is designed for the separation of inorganic anions, including fluoride, chloride, nitrite, bromide, nitrate, phosphate, and sulfate, using a carbonate/bicarbonate eluent coupled with suppressed conductivity detection. The inorganic anions can easily be determined in drinking water, wastewater, foods and beverages, scrubber solutions, and other diverse sample matrices.
For simplified operation use the AS14A with AS14A Eluent Concentrate and the Combined Seven Anion Standard. Use the ASRS 300 suppressor with the AS14A column for low-noise operation.
Note: See also the IonPac AS22, the newest carbonate eluent column recommended for fast analysis of inorganic anions.
| Dionex IonPac AS14A Anion-Exchange Column Specifications | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dimensions | Dionex IonPac AS14A Analytical Column: 3 × 150 mm and 4 × 250 mm Dionex IonPac AG14A Guard Column: 3 × 30 mm and 4 × 50 mm | ||||||||||||
| Maximum operating pressure | 27.6 MPa (4000 psi) | ||||||||||||
| phase compatibility | pH 0–14; 0–* HPLC solvents | ||||||||||||
| Substrate characteristics | Bead Diameter: 7 µm (4 × 250 mm); 5 µm (3 × 150 mm) Pore Size: 100 Å Cross-Linking (%DVB): 55% | ||||||||||||
| Functional group characteristics | Ion-Exchange Group: Surface-functionalized alkyl quaternary ammonium ion Hydrophobicity: Medium High | ||||||||||||
| Capacity | 40 µeq (3 × 150 mm analytical column) 120 µeq (4 × 250 mm analytical column) | ||||||||||||
| Column construction | PEEK with 10-32 threaded ferrule-style end fittings. All components are nonmetallic.
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