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(shì)和方法已廣泛地應(yīng)用于各個(gè)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(hào) | 美國(guó)戴安 P/N: 075399 |
|---|---|
| 廠商性質(zhì) | 代理商 |
| 更新日期 | 2018-04-24 |
The IonPac? AS20 hydroxide-selective anion-exchange column is specifically designed for determination of trace concentrations of perchlorate in drinking water, surface water, and groundwater matrices. The capacity and selectivity of the AS20 ensures that perchlorate can be quantified at low μg/L concentrations using suppressed conductivity detection, even in the presence of very high concentrations of chloride, carbonate, and sulfate. The new IonPac AS20 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.
The IonPac AS20 is the specified column in US EPA Method 314.1 (Confirmatory Method). The Cryptand C1 Concentrator Column is the specified concentrator column for sample preconcentration in that method.
Use the IonPac AS20 column with an RFIC? system for optimum detection limits. Use the Anion Self-Regenerating Suppressor (ASRS? 300) or the Anion Capillary Electrolytic Suppressor (ACES 300) with the AS20 column for eluent suppression.
| IonPac AS20 Anion-Exchange Column Specifications | |
|---|---|
| Maximum Operating Pressure: | 4000 psi (standard and microbore) 5000 psi (capillary) |
| Phase Compatibility: | pH 0–14; 0–100% HPLC solvents |
| Ion Exchange Group: | Functional Group: Alkanol quaternary ammonium ion |
| Column Construction: | PEEK with 10–32 threaded ferrule style end fittings. All components are nonmetallic. |
| Functional Group Characteristics: | Ultralow Hydrophobicity |
| Dimensions: | IonPac AS20 Capillary Column: 0.4 ×250 mm IonPac AG20 Capillary Guard Column: 0.4 × 50 mm IonPac AS20 Analytical Column: 2 × 250 mm IonPac AG20 Guard Column: 2 × 50 mm IonPac AS20 Analytical Column: 4 × 250 mm IonPac AG20 Guard Column: 4 × 50 mm |
| Capacity: | 3.1 ?eq (0.4 × 250 mm capillary column) |
| Substrate Characteristics: | Bead Diameter and Pore Size: 7.5 ?m (2 × 250, 4 × 250 and 0.4 × 250 mm); super macroporous resin (2000 ?) 11 ?m (2 × 50, 4 × 50 and 0.4 × 50 mm); microporous resin (<1 ?) Crosslinking (%DVB): 55% |
| Analytical Columns | |
|---|---|
| IonPac AS20 Analytical Column (2 x 250 mm) | 063065 |
| IonPac AS20 Analytical Column (4 x 250 mm) | 063148 |
| IonPac AS20 Capillary Column (0.4 x 250 mm) | 075399 |
| Guard Columns | |
|---|---|
| IonPac AG20 Guard Column (2 x 50 mm) | 063066 |
| IonPac AG20 Guard Column (4 x 50 mm) | 063154 |
| IonPac AG20 Capillary Guard Column (0.4 x 50 mm) | 075400 |
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