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Dionex IonPac AS26 阴离子交换柱 076020
利用 Thermo Scientific? Dionex IonPac AS26 柱，以高灵敏度分离饮用水样品中的卤乙酸和溴酸盐。 在二维 IC (2D-IC) 方法的二维分离中使用该款高容量氢氧化物选择性阴离子交换柱时，可检测低 μg/L (ppb) 水平的卤乙酸。
描述
针对卤乙酸的 2D-IC 测定进行了优化
Dionex IonPac AS26 毛细管柱专为在使用如 Thermo Scientific? Dionex? IonPac? AS24A 4x250mm 柱等色谱柱进行一维分离后对饮用水中的卤乙酸进行二维分离而设计。 该款色谱柱也可用于测定痕量溴酸盐，同时适用于使用梯度洗脱的 Reagent-Free 离子色谱 (RFIC?) 系统的特殊应用开发。
降低运行成本
毛细管和微孔需要的淋洗液更少，从而降低了运行成本
优异的色谱分析性能
针对氢氧化物流动相进行优化
高容量： 250μeq 每柱 (4x250mm)
在 2D-IC 中无需样品预处理即可测定高离子强度基质中的卤乙酸
可在室温或高温环境下操作；选择性在 15oC 操作温度下达到*
兼容 HPLC 有机溶剂
Dionex IonPac AS26 阴离子交换柱 076020
订货信息：
Dionex IonPac AS26 阴离子交换柱
| Analytical Columns | |
| IonPac AS26 Capillary Column (0.4 x 250 mm) | 076018 |
| IonPac AS26 Analytical Column (4 x 250 mm) | 076020 |
| IonPac AS26 Analytical Column (2 x 250 mm) | 076022 |
| Guard Columns | |
| IonPac AG26 Capillary Guard Column (0.4 x 50 mm) | 076019 |
| IonPac AG26 Guard Column (4 x 50 mm) | 076021 |
| IonPac AG26 Guard Column (2 x 50 mm) | 076023 |
For Separation of Haloacetic Acids and Bromate in Drinking Water Using Two-Dimensional Ion Chromatography (2D-IC) Analysis
The Thermo Scientific Dionex IonPac* AS26 hydroxide-selective anion-exchange column is specifically designed for 2D-IC separation of haloacetic acids (HAAs) in drinking water. The capacity and selectivity of this column enables analysis of haloacetic acids in drinking water at low-μg/L concentrations. The Dionex IonPac AS26 column is available in standard bore (4 × 250 mm), microbore (2 × 250 mm), and capillary (0.4 × 250 mm) formats, supporting flow rates from 10 μL/min to 3 mL/min.
High capacity: 250 μeq per column (4 × 250 mm)
Determines HAAs in high-ionic-strength matrices without sample pretreatment
Column selectivity optimized for a 15 oC operating temperature
Compatible with HPLC organic solvents
Used as second-dimension column in 2D-IC method for HAAs (0.4 × 250 mm)
| Dionex IonPac? AS26 Anion Exchange Column Specifications | |
|---|---|
| Substrate Characteristics: | Bead Diameter and Pore Size: 7.5 μm (2 × 250, 4 × 250, and 0.4 × 250 mm); supermacroporous resin (2000 ?) 13 μm (2 × 50, 4 × 50, 0.4 × 50 mm); microporous resin (<10 ?) Crosslinking (%DVB): 55% |
| Ion-Exchange Group: | Functional Group: Alkanol quaternary ammonium ion |
| Functional Group Characteristics: | Ultralow Hydrophobicity |
| Capacity: | 250 μeq (4 × 250 mm analytical column) 6 μeq* (4 × 50 mm guard column) 62.5 μeq (2 × 250 mm analytical column) 1.5 μeq* (2 × 50 mm guard column) 2.5 μeq (0.4 × 250 mm capillary column) 0.06 μeq* (0.4 × 50 mm capillary guard column) *Guard is packed with a low-capacity microporous resin. |
| Column Construction: | PEEK? with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
| Dimensions: | Dionex IonPac AS26 Analytical Column: 2 × 250 mm, 4 × 250 mm Dionex IonPac AG26 Guard Column: 2 × 50 mm, 4 × 50 mm Dionex IonPac AS26 Capillary Column: 0.4 × 250 mm Dionex IonPac AG26 Capillary Guard Column: 0.4 × 50 mm |
| Maximum Operating Pressure: | 3000 psi (standard, microbore and capillary) |
| Mobile Phase Compatibility: | pH 0–14; 0–100% HPLC solvents |
