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面议The IonPac® AS15 column was designed specifically for analysis of trace anions in high-purity water matrices, for the semiconductor and power generation industries. Its high capacity and selectivity enable the determination of trace-level concentrations of inorganic anions and low-molecular-weight organic acids in high-purity water matrices. The new IonPac AS15 Capillary Column is packed with the same material as the equivalent standard bore version (providing the same performance as a 4 mm column) but requires only 1/100th the eluent flow rate. The capillary format provides the advantage of significantly reduced eluent consumption, which helps reduce operating costs.
AS15-5μm (3 × 150 mm) column for high efficiency, fast analysis (15 min)
AS15-9μm (2 × 250, 4 × 250 mm, and 0.4 × 250 mm) columns for higher-capacity applications
Column selectivity optimized for 30 °C operating temperature
Superior resolution of early-eluting anions (fluoride, glycolate, acetate, and formate)
This column is ideal for use with large-loop injections. Use the AC15 concentration column for ultratrace (ppt) analyses. Use with eluent generation for simplified eluent preparation. Use the Anion Self-Regenerating Suppressor® (ASRS® 300) or the Anion Capillary Electrolytic Suppressor (ACES™ 300) with the AS15 column for eluent suppression.
| IonPac® AS15 Anion-Exchange Column Specifications | |
|---|---|
| Dimensions | IonPac AS15 Capillary Column: 0.4 × 250 mm IonPac AS15 Capillary Guard Column: 0.4 × 50 mm IonPac AS15 Analytical Column: 2 × 250 mm, 3 × 150 mm, and 4 × 250 mm IonPac AG15 Guard Column: 2 × 50 mm, 3 × 30 mm, and 4 × 50 mm IonPac AC15 Concentrator Column: 2 × 50 mm and 4 × 50 mm |
| Maximum operating pressure | 4000 psi (standard or microbore) 5000 psi (capillary) |
| phase compatibility | pH 0–14; 0–* HPLC solvents |
| Substrate characteristics | Bead Diameter: 5 µm (3 × 150 mm), 9 µm (0.4 × 250, 2 × 250 mm and 4 × 250 mm), 13 µm (AC15), Pore Size: 100 Å (AS15, AG15), microporous,<10 Å (AC15) Crosslinking (%DVB): 55% |
| Latex characteristics (AC15) | Latex Crosslinking: 6% Latex Diameter: 85 nm |
| Ion-exchange group | Surface-functionalized with alkanol quaternary ammonium ion (AS15, AG15) Latex-functionalized with alkanol quaternary ammonium ion (AC15) |
| Functional group characteristics | Medium-high hydrophobicity (AS15, AG15) Very low hydrophobicity (AC15) |
| AC15 void volume | 2 × 50 mm: 9 µL, 4 × 50 mm: 210 µL |
| Column construction | PEEK® with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
| Capacity | 2.25 µeq (0.4 × 250 mm capillary column) 0.45 µeq (0.4 × 50 mm capillary guard) 56.25 µeq (2 × 250 mm analytical column) 11.25 µeq (2 × 50 mm guard column) 2.2 µeq (2 × 50 mm concentrator column) 70 µeq (3 × 150 mm analytical column) 14 µeq (3 × 30 mm guard column) 225 µeq (4 × 250 mm analytical column) 45 µeq (4 × 50 mm guard column) 9 µeq 4 × 50 mm concentrator column) |
