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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(shí)，可檢測(cè)低 μg/L (ppb) 水平的鹵乙酸。
描述
針對(duì)鹵乙酸的 2D-IC 測(cè)定進(jìn)行了優(yōu)化
Dionex IonPac AS26 毛細(xì)管柱專(zhuān)為在使用如 Thermo Scientific? Dionex? IonPac? AS24A 4x250mm 柱等色譜柱進(jìn)行一維分離后對(duì)飲用水中的鹵乙酸進(jìn)行二維分離而設(shè)計(jì)。 該款色譜柱也可用于測(cè)定痕量溴酸鹽，同時(shí)適用于使用梯度洗脫的 Reagent-Free 離子色譜 (RFIC?) 系統(tǒng)的特殊應(yīng)用開(kāi)發(fā)。
降低運(yùn)行成本
毛細(xì)管和微孔需要的淋洗液更少，從而降低了運(yùn)行成本
優(yōu)異的色譜分析性能
針對(duì)氫氧化物流動(dòng)相進(jìn)行優(yōu)化
高容量： 250μeq 每柱 (4x250mm)
在 2D-IC 中無(wú)需樣品預(yù)處理即可測(cè)定高離子強(qiáng)度基質(zhì)中的鹵乙酸
可在室溫或高溫環(huán)境下操作；選擇性在 15oC 操作溫度下達(dá)到*
兼容 HPLC 有機(jī)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 |
