Complex sample matrices such as chemical wastewater effluents and fermentation broth solutions contain a variety of inorganic anions and organic acids. The Thermo Scientific* Dionex* IonPac* AS11-HC column was specifically designed to resolve a large number of inorganic anions and organic acid anions in a single run using a hydroxide gradient. The new Dionex IonPac AS11-HC Capillary Column is packed with the same material as the equivalent standard bore and microbore versions (providing the same performance as a 4 mm and 2 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
Use for organic acids and anions in complex sample matrices or uncharacterized samples.
Recommended for monovalent and divalent organic acids.
Use the Dionex Ionpac AS11 for fast analysis of organic acids and anions in well-characterized samples.
Use the Dionex IonPac ICE-AS1 or ICE-AS6 columns for organic acids in high-ionic-strength samples.
High capacity translates into longer retention times, but with higher resolution.
The high-capacity Dionex IonPac AS11-HC column allows the injection of more concentrated samples without column overloading or peak broadening, and provides improved separation over the Dionex IonPac AS11 column for monovalent carboxylic acids, including quinate, lactate, acetate, propionate, formate, and butyrate.
| Dionex IonPac* AS11-HC Anion-Exchange Column Specifications | |
|---|---|
| Dimensions | Dionex IonPac AS11-HC Analytical Column: 2×250 mm and 4 × 250 mm Dionex IonPac AG11-HC Guard Column: 2 × 50 mm and 4 × 50 mm Dionex IonPac AS11-HC Capillary Column 0.4 × 250 mm Dionex IonPac AS11-HC Capillary Guard Column 0.4 × 50 mm |
| Maximum operating pressure | 4000 psi (27 MPa) |
| Mobil phase compatibility | pH 0–14; 0–100% HPLC solvents |
| Substrate characteristics | Bead Diameter: 9.0 µm Pore Size: 2000 Å Cross-Linking (%DVB): 55% |
| Latex characteristics | Functional Group: Alkanol quaternary ammonium ion Latex Cross-Linking: 6% Latex Diameter: 70 nm Hydrophobicity: Medium low |
| Capacity | 72.5 µeq (2×250 mm analytical column) 290 µeq (4 × 250 mm analytical column) 2.9 µeq (0.4 × 250 mm capillary column) |
| Column construction | PEEK™with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
Organic acids and inorganic anions separated using the Thermo Scientific* Dionex* IonPac* AS11-HC Capillary column.
Determination of organic acids and inorganic anions using the Dionex IonPac AS11-HC column.
Separation of organic acids and inorganic anions in wine using the Dionex IonPac AS11-HC column.
Separation of organic acids and inorganic anions in apple juice using the Dionex IonPac AS11-HC column.
Dionex IonPac AS11-HC column used for the analysis of beer spiked with 2 mg/L (ppm) butyrate.
Yeast fermentation broth culture (10-fold Dilution) using the Dionex IonPac AS11 and AS11-HC columns.
| Analytical Columns | |
|---|---|
| IonPac AS11-HC Analytical Column (4 x 250 mm) | 052960 |
| IonPac AS11-HC Analytical Column (2 x 250 mm) | 052961 |
| IonPac AS11-HC Capillary Column (0.4 x 250 mm) | 078429 |
| Guard Columns | |
|---|---|
| IonPac AG11-HC Guard Column (4 x 50 mm) | 052962 |
| IonPac AG11-HC Guard Column (2 x 50 mm) | 052963 |
| IonPac AG11-HC Capillary Guard Column (0.4 x 50 mm) | 078430 |
