戴安公司生產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優勢和方法已廣泛地應用于各個領域，其*達80%。與離子色譜相關的文章有90%均出自戴安公司生產的離子色譜儀。
| 型號 | 美國戴安 P/N: 076012 |
|---|---|
| 廠商性質 | 代理商 |
| 更新日期 | 2018-04-26 |
The Thermo Scientific Dionex IonPac? AS25 column is ideally suited for the analysis of m*lent anions and polarizable anions (iodide and perchlorate) including sulfur species (sulfite, sulfate, thiosulfate and thiocyanate) in complex sample matrices. The Dionex IonPac AS25 column simplifies the determination of polarizable anions, including thiosulfate, iodide, thiocyanate, and perchlorate by using an isocratic hydroxide eluent with no solvent required for the separation. However, for the best peak shape of polarizable anions, use the Thermo Scientific Dionex IonPac AS16 column or the Thermo Scientific Dionex IonPac AS20 column.
The Dionex IonPac AS25 is a high-capacity, hydroxide-selective column for the determination of m*lent anions and polarizable anions including sulfur species in complex sample matrices including wastewater effluents, scrubber solutions and food and beverage samples can be easily separated on the Dionex IonPac AS25 without the use of solvent. The Dionex IonPac AS25 column is available in 0.4 × 250 mm , 2 × 250 mm, 4 × 250 mm formats supporting flow rates from 0.010 to 3 mL/min.
| Thermo Scientific Dionex IonPac? AS25 Anion-Exchange Column Specifications | |
|---|---|
| Dimensions | Dionex IonPac AS25 Analytical Column: 2 × 250 mm and 4 × 250 mm Dionex IonPac AG25 Guard Column: 2 × 50 mm and 4 × 50 mm Dionex IonPac AS25 Capillary Column: 0.4 × 250 mm Dionex IonPac AG25 Capillary Guard Column: 0.4 × 50 mm |
| Maximum Operating Pressure | 4000 psi (microbore and standard bore) 5000 psi (capillary) |
| Phase Compatibility | pH 0–14; 0–100% HPLC solvents |
| Substrate Characteristics | Bead Diameter: 7.5 ?m Pore Size: 2000 ? super macroporous resin Crosslinking (%DVB): 55% |
| Ion-Exchange Group | Functional Group: Alkanol quaternary ammonium ion Hydrophobicity: Ultralow |
| Capacity | 3.5 ?eq (0.4 × 250 mm capillary column) 0.035 ?eq* (0.4 × 50 mm capillary guard column) 87.5 ?eq (2 × 250 mm analytical column) 0.875 ?eq* (2 × 50 mm guard column) 350 ?eq (4 × 250 mm analytical column) 3.5 ?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. |
| Analytical Columns | |
|---|---|
| IonPac AS25 Capillary Column (0.4 x 250 mm) | 076012 |
| IonPac AS25 Analytical Column (4 x 250 mm) | 076014 |
| IonPac AS25 Analytical Column (2 x 250 mm) | 076016 |
| Guard Columns | |
|---|---|
| IonPac AG25 Capillary Guard Column (0.4 x 50 mm) | 076013 |
| IonPac AG25 Guard Column (4 x 50 mm) | 076015 |
| IonPac AG25 Guard Column (2 x 50 mm) | 076017 |
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