The IonPac® CS16 is the column of choice for disparate concentration ratios of adjacent eluting cations such as sodium and ammonium in diverse sample matrices. The high-capacity, high-resolution CS16 column can be used for short-chained amines, including alkylamines and alkanolamines, in diverse sample matrices. The CS16 column is now available in capillary format (0.5 × 250 mm) offering reduced eluent consumption and reduced operating costs.
For disparate concentration ratios of close-eluting cations such as ammonium and sodium in complex matrices
Ideal for trace-level ammonium in high concentrations of sodium
Ideal for trace-level sodium in high concentrations of ammonium or amines
Best carboxylate-functionalized column to tolerate samples with low pH
Isocratic acid eluent and elevated temperature (40 °C) required for sodium: ammonium ratios to 1:10,000
Gradient MSA eluent and elevated temperature required for sodium: ammonium ratios up to 1:20,000
Useful for short-chained amines, including alkylamines and alkanolamines
Compatible with organic solvents excluding alcohols
Using an isocratic acid eluent and elevated temperature (40 °C) coupled with suppressed conductivity, ratios up to 10,000:1 of sodium and ammonium can be resolved in less than 20 min. Sample matrices include environmental waters; power plant waters treated with ammonium, morpholine or ethanolamine; chemical additives; chemical process solutions; scrubber solutions; plating baths; and industrial solvents. The CS16 is designed for use in most IonPac CS15 applications.
The CS16 column has the highest capacity among Dionex carboxylate-based cation columns, resulting in improved loadability and resolution. Use the CS16 with the Eluent Generator for simplified, consistent methanesulfonic acid eluent preparation. Use the Cation Self-Regenerating Suppressor (CSRS® 300) with standard or microbore CS16 columns or the Cation Capillary Electrolytic Suppressor (CCES™ 300) with the CS16 capillary column.
| IonPac CS16 Cation-Exchange Column Specifications | |
|---|---|
| Dimensions | IonPac® CS16 Capillary Column: 0.5 × 250 mm IonPac CG16 Capillary Guard Column: 0.5 × 50 mm IonPac CS16 Analytical Column: 5 × 250 mm and 3 × 250 mm IonPac CG16 Guard Column: 5 × 50 mm and 3 × 50 mm |
| Maximum Operating Pressure | 4000 psi (Standard and Microbore), 5000 psi (Capillary) |
| Mobile Phase Compatibility | Acidic eluents; 0–100% HPLC acetonitrile. Alcohols should be avoided. |
| Substrate Characteristics | Bead Diameter: 5 μm Cross-Linking (%DVB): 55% |
| Functional Group Characteristics | Ion-Exchange Groups: Grafted carboxylic acid Surface Characteristics: Medium hydrophobic |
| Capacity | 84 μeq (0.5 × 250 mm capillary column) 17 μeq (0.5 × 50 mm capillary guard column) 8400 μeq (5 × 250 mm analytical column) 1700 μeq (5 × 50 mm guard column) 3000 μeq (3 × 250 mm analytical column) 600 μeq (3 × 50 mm guard column) |
| Column Construction | PEEK™ with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
| Analytical Columns | |
|---|---|
| IonPac CS16 Capillary Column (0.5 x 250 mm) | 075401 |
| IonPac CS16 Analytical Column (5 x 250 mm) | 079805 |
| IonPac CS16 Analytical Column (3 x 250 mm) | 059596 |
| Guard Columns | |
|---|---|
| IonPac CG16 Capillary Guard Column (0.5 x 50 mm) | 075402 |
| IonPac CG16 Guard Column (5 x 50 mm) | 057574 |
| IonPac CG16 Guard Column (3 x 50 mm) | 079931 |
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