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*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: 062964 |
|---|---|
| 厂商性质 | 代理商 |
| 更新日期 | 2018-04-22 |
This hydroxide-selective anion-exchange column is specifically designed for the determination of phosphoric and citric acids in cola soft drinks. Its capacity and selectivity allows rapid analysis of these acids in less than 7 minutes.
The Fast Anion IIIA is optimized for a 30 °C operating temperature to ensure reproducible retention times in all environmental conditions. It is compatible with organic solvents to enhance analyte solubility, modify column selectivity, or allow effective column cleanup. The Fast Anion IIIA column is recommended for use with the Eluent Generator, requiring only a deionized water source to produce potassium hydroxide eluent.
The cola samples may require sample pretreatment with sonication to remove carbonation. Sample dilution of cola syrups is recommended prior to analysis to ensure optimum column life. These acids can be analyzed in less than 7 minutes using an isocratic potassium hydroxide eluent delivered by an Eluent Generator in combination with suppressed conductivity detection.
| IonPac Fast Anion IIIA Anion-Exchange Column Specifications | |
|---|---|
| Dimensions | IonPac Fast Anion IIIA Analytical Column: 3 × 250 mm IonPac Fast Anion IIIA Guard Column: 3 × 50 mm |
| phase compatibility | pH 0–14; 0–100% HPLC solvents |
| Ion-exchange group | Functional Group: Alkanol quaternary ammonium ion |
| Maximum operating pressure | 3000 psi |
| Functional group characteristics | Hydrophobicity: Ultralow hydrophobic |
| Capacity | 55 ?eq (3 × 250 mm analytical column) 1.0 ?eq (3 × 50 mm guard column) |
| Column construction | PEEK with 10-32 threaded ferrule style end fittings. All components are nonmetallic. |
| Substrate characteristics | Bead Diameter and Pore Size: 7.5 ?m (3 × 250 mm); supermacroporous resin (2000 ?) 11 ?m (3 × 50 mm); microporous resin (<10 ?) Cross-Linking (%DVB): 55% |
| Analytical Columns | |
|---|---|
| IonPac Fast Anion IIIA Analytical Column (3 x 250 mm) | 062964 |
| Guard Columns | |
|---|---|
| IonPac Fast Anion IIIA Guard Column (3 x 50 mm) | 062966 |
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