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戴安公司的快速溶劑萃取儀15分鐘之內僅用15毫升溶劑既可完成對10g樣品的萃取，該技術已在環境、藥物、食品和聚合物工業等領域得到廣泛應用。
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IonPac AS14A Carbonate Eluent Anion-Exchange Column
Fast Analysis of the Common Inorganic Anions in Diverse Sample Matrices
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; 0–100% HPLC solvents |
| Substrate characteristics | Bead Diameter: 7 μm (4 × 250 mm); 5 μm (3 × 150 mm) Pore Size: 100 ? 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. |
| Analytical | |
|---|---|
| IonPac AS14A-5 μm Analytical Column (3 x 150 mm) | 056901 |
| IonPac AS14A-7 μm Analytical Column (4 x 250 mm) | 056904 |
| Guard Columns | |
|---|---|
| IonPac AG14A-7 μm Guard Column (4 x 50 mm) | 056897 |
| IonPac AG14A-5 μm Guard Column (3 x 30 mm) | 056899 |
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