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Thermo Scientific™ Dionex™ AERS™ 500 Carbonate Electrolytically Regenerated Suppressor, 4mm
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Diameter: 4.8 cm (1.98 in.)
Flow Rate: Maximum Eluent Flow Rate: 3 mL/min.
Recommended Backpressure: 40 to 100 psi
Void Volume: Less than 50 μL
Specifications:
| Application | Ion Exchange Chromatography |
| Storage Temperature | Ambient |
| Product Type | Accessory |
| Product Brand | Thermo Fisher Scientific™ |
| Product Grade | Analytical grade |
The Thermo Scientific™ Dionex™ AERS™ 500 Carbonate Suppressor is an advanced anion electrolytically regenerated suppressor (AERS) specifically optimized for carbonate and carbonate/bicarbonate eluents in ion chromatography. Designed to simplify eluent preparation and improve analytical performance, the AERS 500 Carbonate suppressor eliminates the need for external regenerant chemicals, relying instead on electrolytic regeneration, which enhances ease of use and laboratory safety.
Ideal for anion separations requiring high sensitivity and low background noise, this suppressor reduces peak dispersion and enhances chromatographic resolution, especially when paired with 4 µm particle size columns.
Key Features and Benefits
- Electrolytic regeneration—no need for chemical regenerants
- Low baseline noise—typically <1.5 nS for cleaner signals
- High sensitivity and peak efficiency—especially effective with modern 4 µm columns
- Parallel regenerant flow allows flexible operation in external water mode
- Improved electrode configuration minimizes gas production and field deformation
- Validated quality—includes quality assurance report with test results
- Quick recovery after periods without current
- Reagent-free operation enhances lab safety and reduces maintenance
Available Configurations
| Catalog # | Model | Application | Max Flow Rate | Void Volume |
|---|---|---|---|---|
| 085029 | 4 mm Format | Carbonate/Bicarbonate eluents up to 15 mM | 3.0 mL/min | <50 µL |
| 085028 | 2 mm Format | Carbonate/Bicarbonate eluents up to 15 mM | 0.75 mL/min | <15 µL |
Technical Specifications (4 mm Format)
| Parameter | Specification |
|---|---|
| Type | Electrolytically Regenerated Carbonate Suppressor |
| Flow Rate | Max 3 mL/min |
| Pressure Range | Recommended backpressure: 40–100 psi |
| Current | Max 125 mA |
| Operating Temperature | 15–40 °C (up to 60 °C when installed outside column enclosure) |
| Shipping Temperature | 0–70 °C (short-term only) |
| Suppressor Dimensions (L × W × D) | 12.1 × 4.5 × 4.8 cm |
| Weight | 295 g |
| Void Volume | <50 µL |
| Solvent Compatibility | Methanol, acetonitrile; supports up to 100% solvent in chemical regeneration mode |
| Unit Size | Each |
Applications
- High-sensitivity anion analysis in environmental, industrial, and food samples
- Routine carbonate/bicarbonate eluent suppression for water and ion content testing
- Regulatory compliance testing using IonPac™ AS22 and similar columns
- Pharmaceutical and chemical QA/QC workflows
The Dionex™ AERS™ 500 Carbonate Suppressor provides laboratories with a high-efficiency, low-maintenance suppression solution for carbonate-based ion chromatography. Offering superior sensitivity, baseline noise reduction, and regenerant-free operation, it is the ideal choice for labs seeking robust and precise performance in routine or high-throughput IC workflows.
- Suppressor Format: 2 mm (microbore) for use with 2 mm I.D Columns (Up to 0.75 mL/min Flow rate) 4 mm (microbore) for use with 4 mm I.D Columns (Up to 3.0 mL/min Flow rate)