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Dionex IonPac AS26 陰離子交換柱 076020
利用 Thermo Scientific? Dionex IonPac AS26 柱，以高靈敏度分離飲用水樣品中的鹵乙酸和溴酸鹽。 在二維 IC (2D-IC) 方法的二維分離中使用該款高容量氫氧化物選擇性陰離子交換柱時，可檢測低 μg/L (ppb) 水平的鹵乙酸。
描述
針對鹵乙酸的 2D-IC 測定進行了優化
Dionex IonPac AS26 毛細管柱專為在使用如 Thermo Scientific? Dionex? IonPac? AS24A 4x250mm 柱等色譜柱進行一維分離后對飲用水中的鹵乙酸進行二維分離而設計。 該款色譜柱也可用于測定痕量溴酸鹽，同時適用于使用梯度洗脫的 Reagent-Free 離子色譜 (RFIC?) 系統的特殊應用開發。
降低運行成本
毛細管和微孔需要的淋洗液更少，從而降低了運行成本
優異的色譜分析性能
針對氫氧化物流動相進行優化
高容量： 250μeq 每柱 (4x250mm)
在 2D-IC 中無需樣品預處理即可測定高離子強度基質中的鹵乙酸
可在室溫或高溫環境下操作；選擇性在 15oC 操作溫度下達到*
兼容 HPLC 有機溶劑
Dionex IonPac AS26 陰離子交換柱 076020
訂貨信息：
Dionex IonPac AS26 陰離子交換柱
| 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 |
