Dionex IonPac AS27 阴离子交换柱
实现痕量卤氧化物和无机阴离子的高分辨率分离饮用水使用Thermo Scientific Dionex IonPac AS27 分析和保护柱。这些羟基选择性阴离子交换柱可以分析饮用水与乙二胺（EDA）最完好的样品无需预处理或富集。这as27柱Dionex IonPac符合美国EPA方法300和300.1的性能要求。
Dionex IonPac AS27 阴离子交换柱
订货信息：
| Analytical Columns | |
| Dionex IonPac AS27 Analytical Column (4 × 250 mm) | 088437 |
| Dionex IonPac AS27 Analytical Column (2 × 250 mm) | 088439 |
| Dionex IonPac AS27 Capillary Column (0.4 × 250 mm) | 088441 |
| Guard Columns | |
| Dionex IonPac AG27 Guard Column (4 × 50 mm) | 088438 |
| Dionex IonPac AG27 Guard Column (2 × 50 mm) | 088440 |
| Dionex IonPac AG27 Capillary Guard Column (0.4 × 50 mm) | 088442 |
Achieve high resolution separations of trace oxyhalides and inorganic anions in drinking water using the Thermo Scientific? Dionex? IonPac? AS27 hydroxide-selective anion-exchange column. The selectivity of the Dionex IonPac AS27 column has been optimized for trace level analysis of bromate in the presence of ppm levels of ethylenediamine (EDA). EDA is used as a preservative in some drinking water samples and can cause interference of early eluting peaks, including bromate. The high resolution, high capacity and selectivity of the Dionex IonPac AS27 column allows the determination of trace bromate in drinking water without sample pretreatment or preconcentration. The Dionex IonPac AS27 columns meets the performance requirements of US EPA Methods 300.0 and 300.1.
The Dionex IonPac AS27 column is available in three formats: 4 × 250 mm, 2 × 250 mm and 0.4 × 250 mm.The Dionex IonPac AS27 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.
Optimized for analysis of trace bromate in drinking water preserved with EDA
High capacity: 220 μeq per column (4 × 250 mm)
Meets or exceeds performance requirements of US EPA Methods 300.0 and 300.1
Column selectivity is optimized for 30 °C operating temperature
Compatible with organic solvents
The Dionex IonPac AS27 column is designed for the analysis of oxyhalides and common inorganic anions including fluoride, chlorite, bromate, chloride, nitrite, bromide, chlorate, nitrate, phosphate, and sulfate in drinking water, groundwater, wastewater, and other diverse sample matrices. The Dionex IonPac AS27 column allows analysis of most drinking water preserved with EDA without sample pretreatment or preconcentration. This column is ideally used with an RFIC system for automatic eluent generation.
The key application for the Dionex IonPac AS27 column is the determination of trace bromate in drinking water matrices that have been preserved with EDA using a potassium hydroxide gradient with suppressed conductivity detection. The selectivity of the Dionex IonPac AS27 column ensures that bromate can be quantified at low μg/L concentrations using suppressed conductivity detection even in the presence of very high concentrations of chloride, sulfate, and carbonate as well as EDA.
The Dionex IonPac AS27 column has similar selectivity and capacity compared to the Dionex IonPac AS19 column and most applications can be performed on either column. However, for samples preserved with EDA, the Dionex IonPac AS27 column is recommended.
The Dionex IonPac AS27 column produces under 3000 psi at the standard flow rates and can be operated on any Dionex IC system, such as the Thermo Scientific? Dionex? ICS-5000+ HPIC? or the Thermo Scientific Dionex ICS-4000 Capillary HPIC system.
Note: Use the Thermo Scientific? Dionex? AERS? 500 Anion Electrolytically Regenerated Suppressor with the Dionex IonPac AS27 column for eluent suppression.
| Dionex IonPac AS27 Anion-Exchange Column Specifications | |
|---|---|
| Dimensions | Dionex IonPac AS27 Analytical Column: 2 × 250 mm and 4 × 250 mm Dionex IonPac AG27 Guard Column: 2 × 50 mm and 4 × 50 mm Dionex IonPac AS27 Capillary Column: 0.4 × 250 mm Dionex IonPac AG27 Capillary Guard Column: 0.4 × 50 mm |
| Maximum operating pressure | 3000 psi |
| Ion-exchange group | Functional Group: Alkanol quaternary ammonium ion |
| Functional group characteristics | Ultralow hydrophobicity |
| Capacity | 2.2 μeq (0.4 × 250 mm capillary column) 0.05 μeq* (0.4 × 50 mm capillary guard column) 55 μeq (2 × 250 mm analytical column) 1.25 μeq* (2 × 50 mm guard column) 220 μeq (4 × 250 mm analytical column) 5 μeq* (4 × 50 mm guard column) *Guards are packed with a low-capacity microporous resin. |
| Column construction | PEEK with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
| Substrate characteristics | Bead Diameter and Pore Size: 6.5 μm (0.4 x 250, 2 × 250 and 4 × 250
mm); super macroporous resin (2000 ?) 10 μm (0.4 x 50, 2 × 50 and 4 × 50 mm); microporous resin (<1 ?) Cross-Linking (%DVB): 55% |
| Mobile phase compatibility | pH 0–14; 0–100% HPLC solvents |
Determination of trace bromate in the presence of 50 ppm ethylenediamine in a municipal drinking water sample using the Dionex IonPac AS27 column.
Determination of oxyhalides and common inorganic anions using the Dionex IonPac AS27 column.
Determination of inorganic anions and trace level oxyhalides in a simulated
drinking water using the Dionex IonPac AS27 column.
Separation
of 24 anions using the Dionex IonPac AS27 column.
Separation
of inorganic anions and oxyhalides using the Dionex IonPac AS27 column with and
without a guard column.
| Product Specifications | |
|---|---|
 | Dionex IonPac AS27 Product Specifications |
| Manuals | |
|---|---|
| Dionex IonPac AS27 Product Manual |
Dionex IonPac AS27 阴离子交换柱 088437信息由北京豫维科技有限公司为您提供，如您想了解更多关于Dionex IonPac AS27 阴离子交换柱 088437报价、型号、参数等信息，欢迎来电或留言咨询。
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