戴安公司生產(chǎn)的儀器主要有離子色譜儀、高效液相色譜儀、快速溶劑萃取儀和氨基酸直接分析儀。其中離子色譜儀憑借著雄厚的技術(shù)優(yōu)勢和方法已廣泛地應(yīng)用于各個領(lǐng)域，其*達(dá)80%。與離子色譜相關(guān)的文章有90%均出自戴安公司生產(chǎn)的離子色譜儀。
| 型號 | 美國戴安 P/N: |
|---|---|
| 廠商性質(zhì) | 代理商 |
| 更新日期 | 2018-05-10 |
The Thermo Scientific? Dionex? IonPac? AS23 carbonate eluent anion-exchange column is specifically designed for trace bromate in drinking water. Its high-capacity and selectivity enables determination of bromate in drinking water at the low μg/L level. The Dionex IonPac AS23 column meets the performance requirements of U.S EPA Methods 300.0 and 300.1. The Dionex IonPac AS23 column is offered in three formats: standard bore (4 × 250 mm), microbore (2 × 250 mm) and capillary (0.4 × 250 mm). The capillary formats 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.
The Dionex IonPac AS23 column is designed for the analysis of oxyhalides and the common inorganic anions including fluoride, chlorite, bromate, chloride, nitrite, bromide, chlorate, nitrate, phosphate, and sulfate in drinking water, ground water, wastewater, and other diverse sample matrices.
The Dionex IonPac AS23 column is the newest carbonate eluent column recommended for the analysis of oxyhalides including bromate. It can be used in combination with the Eluent Generator and the Electrolytic pH Modifier (EPM) which automatically produces potassium carbonate/bicarbonate eluents from water. The Dionex IonPac AS23 column is an ideal alternative, using carbonate-bicarbonate eluents, for Dionex IonPac AS9-HC applications.
| Dionex IonPac AS23 Anion-Exchange Column Specifications | |
|---|---|
| Ion-Exchange Group: | Functional Group: Alkanol quaternary ammonium ion |
| Functional Group Characteristics: | Ultralow hydrophobicity |
| Capacity: | 3.2 ?eq (0.4 × 250 mm capillary column) 80 ?eq (2 × 250 mm analytical column) 320 ?eq (4 × 250 mm analytical column) 0.06 ?eq* (0.4 × 50 mm Capillary guard column) 1.5 ?eq* (2 × 50 mm guard column) 6 ?eq* (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. |
| Dimensions: | Dionex IonPac AS23 Analytical Column: 2 × 250 mm and 4 × 250 mm Dionex IonPac AS23 Capillary Column: 0.4 × 250 mm Dionex IonPac AG23 Guard Column: 2 × 50 mm and 4 × 50 mm Dionex IonPac AG23 Capillary Guard Column: 0.4 × 50 mm) |
| Maximum Operating Pressure: | 3000 psi |
| Phase Compatibility: | pH 0–14; 0–100% HPLC solvents |
| Substrate Characteristics: | Bead Diameter and Pore Size: 6.0 ?m (0.4 × 250, 2 × 250 and 4 × 250 mm); super macroporous resin (2000 ?) 11 ?m (0.4 × 50, 2 × 50 and 4 × 50 mm); microporous resin (<1 ?) Cross-linking (%DVB): 55% |
| Analytical Columns | |
|---|---|
| IonPac AS23 Analytical Column (2 x 250 mm) | 064145 |
| IonPac AS23 Analytical Column (4 x 250 mm) | 064149 |
| Dionex IonPac AS23 Capillary Column (0.4 × 250 mm) | 079782 |
| Guard Columns | |
|---|---|
| IonPac AG23 Guard Column (2 x 50 mm) | 064143 |
| IonPac AG23 Guard Column (4 x 50 mm) | 064147 |
| Dionex IonPac AG23 Capillary Guard Column (0.4 × 50 mm) | 083160 |
| Anion Eluent Concentrates | |
|---|---|
| AS23 Eluent Concentrate (100x), 250 mL | 064161 |
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