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戴安公司的快速溶劑萃取儀15分鐘之內(nèi)僅用15毫升溶劑既可完成對(duì)10g樣品的萃取，該技術(shù)已在環(huán)境、藥物、食品和聚合物工業(yè)等領(lǐng)域得到廣泛應(yīng)用。
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IonPac Fast Anion IIIA Hydroxide-Selective Anion-Exchange Column
Rugged and Reliable Column for Rapid Determination of Phosphoric and Citric Acids in Colas
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.
- Use with the Eluent Generator for simplified Reagent-Free IC operation.
- The 3 mm i.d. configuration provides economical operation.
- Combine with the ASRS? 300 suppressor for low background and enhanced sensitivity.
- Compatible with organic solvents.
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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