Dionex IonPac AS7 Column 阴离子交换填充柱
简要描述：
戴安公司生产的仪器主要有离子色谱仪、高效液相色谱仪、快速溶剂萃取仪和氨基酸直接分析仪。其中离子色谱仪凭借着雄厚的技术优势和方法已广泛地应用于各个领域，其市场占有率达80%。与离子色谱相关的文章有90%均出自戴安公司生产的离子色谱仪。 戴安公司的快速溶剂萃取仪15分钟之内仅用15毫升溶剂既可完成对10g样品的萃取，该技术已在环境、药物、食品和聚合物工业等领域得到广泛应用。
| 型号 | 美国戴安 P/N: 035394 |
|---|---|
Thermo Scientific Dionex
IonPac AS7 Specialty Anion-Exchange Column
For Separation of a Wide Range of Polyvalent Anions
The IonPac? AS7 separates a wide variety of polyvalent anions, including polyphosphates, polyphosphonates, and other polyvalent complexing agents such as EDTA and NTA using acidic eluent (eliminating metal interferences) with postcolumn derivatization and UV-Vis detection.
- For polyvalent anions and chelating agents in complex sample matrices
- Determines cyanide and sulfide using amperometric detection
- Useful for hexavalent chromium in environmental matrices
The AS7 column has a unique polymer packing that provides superior performance for separating ionic and polar compounds. The patented packing offers high speed, high efficiency, and high loading capacity at moderate backpressures.
Note: The newer IonPac AS16 or AS20 column is recommended for polyphosphates.
| IonPac AS7 Anion-Exchange Column Specifications | |
|---|---|
| Maximum operating pressure | 4000 psi (26 MPa) |
| phase compatibility | pH 0–14 |
| Column construction | PEEK? with internal style 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
| Substrate characteristics | Particle Diameter: 10 ?m Cross-Linking (%DVB): 2% |
| Latex characteristics | Functional Group: Alkyl quaternary ammonium Latex Cross-Linking: 5% Latex Diameter: 530 nm Capacity (?eq/column): 100 ?eq (4 x 250 mm) and 25 ?eq (2 x 250 mm) Hydrophobicity: Medium-high |
| Analytical column dimensions | IonPac? AS7 Column: 4 x 250 and 2 x 250 mm |
| Guard column dimensions | IonPac AG7 Column: 4 x 50 and 2 x 50 mm |
| Analytical Columns | |
|---|---|
| IonPac AS7 Analytical Column (4 x 250 mm) | 035393 |
| IonPac AS7 Analytical Column (2 x 250 mm) | 063097 |
| Guard Columns | |
|---|---|
| IonPac AG7 Guard Column (4 x 50 mm) | 035394 |
| IonPac AG7 Guard Column (2 x 50 mm) | 063099 |