Ion-exchange chromatography is a vital technique for separating molecules based on their charge. Selecting the appropriate ion-exchange column is crucial for achieving high-resolution separations, ensuring reliable results, and optimizing experimental workflows in various analytical and preparative applications.
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No. 1
StonyLab Borosilicate Glass Chromatography Column with Reservoir and Fritted Disc, 50ml Capacity, 24/40 Outer...
- Chromatography column
- 24/40 Joint; G2 40~80 μm Nominal Max. pore size
- With Fritted Disc and PTFE Stopcock
- 25mm in column O.D. And 203mm in effective length
- StonyLab ensures premium products and premium customer service; if received damaged, please contact us immediately; we will solve it until satisfied
No. 2
stonylab Chromatography Column, 1 inch Inner Diameter, 8 inch Length, G2 Sand Plug, 24/40 Standard Taper...
- High-Precision Chromatography Column: features a 1 inch inner diameter and 8 inch effective length, equipped with a 24/40 standard taper upper joint for secure connections
- G2 Sand Plug at Base: includes a G2 sand plug with a sand core aperture of 0.0016-0.0031 inch at the column's base, ensuring efficient separation of complex mixtures
- Durable Borosilicate Glass Construction: made from G3.3 borosilicate glass, known for its high thermal resistance and chemical inertness, ensuring durability and reliability in laboratory settings
- PTFE Valve: features a polytetrafluoroethylene (PTFE) valve for precise control over flow and separation processes, suitable for separating mixed samples containing various organic compounds
- Warranty: stonylab 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied
No. 3
Labasics Glass Chromatography Column, Borosilicate Glass 24/40 Standard Joint Chromatography Column with...
- Glass chromatography column with sintered disc, ideal for in-column operations in chemical experiments
- 30mm column O.D. and 300 mm effective length
- Standard 24/40 taper outer joint at the top, equipped with a fritted disc and a PTFE stopcock
- Made of high borosilicate glass, featuring a thick-walled design for reusability; maximum withstand temperature 250°C
- Warranty: Labasics 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied
No. 4
Laboratory ion Chromatography Column IC Column C18-1cc Sample pretreatment SPE Column 1mL Solid-Phase...
- 1. Use a disposable syringe to draw 5 mL of chromatographic pure methanol and push it into the C18 cartridge at a flow rate of 2~4 mL/min.
- 2. Use a disposable syringe to draw 10mL of secondary deionized water and push it into the C18 cartridge at a flow rate of 2~4mL/min.
- 3. The C18 cartridge should be placed flat for 20 minutes to ensure its full activation.
- 4. Use a disposable syringe to draw the sample solution, push it into C18 at a flow rate of 2~4mL/min, and discard the first 3mL.
- 5. Collect the following liquid, combine it with a syringe filter, and directly enter the ion chromatography for analysis, or transfer it to a sample bottle for sample injection analysis through an autosampler.
No. 5
Laboy Glass Chromatography Column 24/40 with 500 mL Reservoir, 46 mm O.D., 305 mm Effective Length, PTFE...
- Large-capacity chromatography column with integrated 500 mL reservoir for flash and preparative chromatography on a 24/40 system.
- 46 mm outer diameter and approximately 305 mm effective bed length provide a generous packing volume for larger preparative separations.
- Built-in reservoir allows convenient solvent and sample loading for long runs and higher sample loads.
- PTFE stopcock at the outlet offers smooth, precise control of solvent flow; wetted surfaces are PTFE and borosilicate glass to resist common solvents.
- Intended for gravity or low-pressure flash chromatography under modest positive pressure; column must be clamped securely and used in a fume hood behind a safety shield. Stand, clamps and chromatography media are not included.
No. 6
Diba Chromatography Column with 2 Adjustable Endpieces, 5 mm ID x 100 mm L
- Ergonomically designed endpieces provide simple and quick height adjustment
- PEEK column threads offer outstanding durability
- Precision borosilicate glass columns provide inertness, visibility, and performance
- Superior frit placement adds bed support and even distribution of sample flow
- Reusable columns let you pack your own media specific to your application
SaleNo. 8
Chromatography Column Bundle with Chromatography Reservoir (500 ml) - Labasics Bundle
- Bundle includes: 1 x glass chromatography column, 1 x 500 mL glass chromatography reservoir
- The glass chromatography column is made of borosilicate glass with a 24/40 standard joint, PTFE stopcock, and fritted disc, effective column length 11.8 inches, column O.D. 1.97 inches
- The 500 mL chromatography reservoir is corrosion resistant, transparent for easy observation, facilitating fluid storage and control
- This bundle is suitable for separation experiments, research, and educational applications involving liquid handling and chromatography
- Warranty: 1-year coverage period for your peace of mind, if received damaged, please let us know and we will solve it promptly
No. 9
stonylab Borosilicate Glass Chromatography Column with G2 Sand Plate, 13 mm Inner Diameter, 203 mm Effective...
- Premium Construction: made from G3.3 high borosilicate glass, ensuring durability and resistance to chemical corrosion, with a polytetrafluoroethylene (PTFE) valve for added reliability
- Enhanced Separation: features a G2 sand plate at the bottom with a sand core pore size ranging from 40 to 80 micrometers, facilitating efficient separation of mixed samples containing various organic compounds
- Precise Dimensions: with an inner diameter of 13mm and an effective length of 203mm, equipped with a standard 24/40 joint at the top for seamless integration into laboratory setups
- Versatile Application: ideal for separating mixed samples containing multiple organic compounds, making it a valuable tool for various laboratory experiments and analyses
- Satisfaction Guarantee: in case of any damage upon receipt, please contact us immediately for prompt assistance and resolution; your satisfaction is our priority
No. 10
Automatic Protein Purification Instrument Molecular Sieve Chromatography Affinity Purification ion Exchange...
- By using the process experiment mode, you can efficiently perform molecular sieve chromatography, antibody affinity purification, ion exchange chromatography, hydrophobic chromatography, desalting, buffer exchange and nickel column affinity...
- Automatic sample shortage pause function with pop-up and sound alerts. The bubble sensor detects air bubbles in the pipeline, and the instrument automatically pauses and prompts upon detection. After confirmation to continue, the instrument expels air...
- Applications: Gravity columns, desalting columns, molecular sieves, Ni columns, antibody affinity purification, etc.
- Instrument easy to use, no need training, zero barrier, everyone can start experiments immediately. one-click to startup;
- Precision and Stability: Intelligent system avoids human error, achieving data repeatability as high as 99%.
- 6 inch LCD touch screen.
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Last update on 2026-04-22 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Lab Chromatography Ion-Exchange Columns
Understanding Ion-Exchange Principles
Ion-exchange chromatography separates compounds based on reversible electrostatic interactions between charged molecules in a sample and oppositely charged functional groups immobilized on the stationary phase of the column. Key factors to consider include the type of ion exchanger (cation or anion exchange) and the strength of the ion-exchange resin (strong or weak).Key Column Specifications to Evaluate
When choosing an ion-exchange column, pay close attention to several critical specifications. The stationary phase material (e.g., silica, polymer) influences chemical compatibility and pressure limits. Particle size and pore size affect resolution and binding capacity. Column dimensions (length and diameter) determine sample throughput and separation efficiency. Finally, the type and density of the charged functional groups dictate the binding capacity and selectivity.Matching Column to Your Application
The intended application is paramount in selecting the right column. For protein purification, consider columns with high binding capacity and compatibility with physiological buffers. Analytical separations often require high-resolution columns with small particle sizes. Preparative chromatography demands larger columns with robust flow rates and high capacity. Ensure the column's operating pH and temperature ranges align with your experimental conditions.Considerations for Different Ion-Exchange Types
Cation-exchange columns bind positively charged molecules and are suitable for separating basic proteins, peptides, and nucleic acids. Anion-exchange columns bind negatively charged molecules, making them ideal for acidic proteins, glycoproteins, and endotoxins. Strong ion exchangers maintain their charge over a wide pH range, offering consistent performance, while weak ion exchangers exhibit pH-dependent charge, allowing for more tunable separations.Frequently Asked Questions
What is the difference between cation and anion exchange columns?
Cation exchange columns have negatively charged stationary phases and bind positively charged molecules (cations). Anion exchange columns have positively charged stationary phases and bind negatively charged molecules (anions).
How does particle size affect column performance?
Smaller particle sizes generally lead to higher resolution and efficiency due to increased surface area and shorter diffusion paths. However, they also result in higher backpressure, requiring more robust pumping systems.
What is the significance of the stationary phase material?
The stationary phase material (e.g., silica, polymer) impacts chemical stability, pH range, pressure tolerance, and compatibility with different mobile phases. Silica-based materials offer high efficiency but have limited pH stability.
How do I choose between a strong and weak ion exchanger?
Strong ion exchangers maintain their charge across a broad pH range, providing consistent binding capacity. Weak ion exchangers exhibit pH-dependent charge, which can be exploited for more selective separations by adjusting the buffer pH.
What does binding capacity refer to?
Binding capacity is the maximum amount of target analyte that a column can retain under specific conditions. Higher binding capacity is desirable for preparative applications to process larger sample volumes efficiently.
How does column dimension affect chromatography?
Column length influences resolution (longer columns generally provide better separation), while column diameter affects sample capacity and throughput. Larger diameter columns are used for preparative scale, while smaller ones are for analytical purposes.