EzSelect pre-packed column, ideal option for high throughput screening
In R&D of bio-pharmaceuticals, rapid optimization of upstream and downstream process conditions, enhanced process efficiency and improved product quality have long been the core goals of R&D team. Bestchrom launched EzSelect high throughput pre-packed columns, which improves downstream processing efficiency while offering data support for upstream processing optimization via high throughput and fast data feedback.
Why EzSelect ?
As a product designed for rapid screening and process development, EzSelect enjoys the following advantages.
1. High throughput selection
Rapid screening of downstream purification conditions including buffer, pH and salinity. Improvement in process development efficiency and data reliability.
2. Automatic compatibility
Compatible to Tecan and other robotic workstations, enables fully automated screening, reduced personal errors, enhanced experiment productivity.
3. Enhancing efficiency while minimizing cost
600µL column volume, reduce sample and solution consumption, improve efficiency while cutting cost in R&D.

Fig.1 EzSelect Column
Technical parameters
Pre-packed column |
EzSelect Column |
CV |
600µL |
Bed height |
30.0mm |
Column diameter |
5.0mm |
Column material |
Polypropylene |
Chemical stability |
Common aqueous solution, pH1~14*,organic solution ** |
Shipping buffer |
Use shipping buffer of pre-packed resin |
Storage temperature |
Use storage temperature of pre-packed resin |
Max operational pressure |
Max 8.0bar |
Operational temperature |
2~30℃ |
* &**:Refer to the conditions of pre-packed resin for pH stability and organic solution tolerance
Typical applications
1. Feedback from upstream expression application
Evaluate the sample yield and quality under different upstream expression conditions, providing reference for upstream cell culture media, cell line screening and other process-related parameters optimization.
2. Downstream process development
Screening downstream purification conditions(such as buffer, pH, salinity), improve purity and yield of target molecules.
3. Resin performance evaluation
Rapid detection of DBC, resolution and impurity removal ability, providing key data for industrial process scale-up.
4. Improved understanding in process development
High throughput workflow to expand experimental conditions exploration for better process understanding.
Empower process development, enhance efficiency in R&D
EzSelect high throughput pre-packed column speed up the screening of conditions in downstream purification, while providing rapid feedback for effectiveness of upstream expression conditions, so as to achieve simultaneous upstream/downstream optimization. From rapid process condition screening, expression performance evaluation to productivity improvement, EzSelect will serve as a valuable assistant for R&D team.
EzSelect, starting point for efficient process development.
Order Information
IEX chromatography
Column |
Cat.No. |
EzSelect Diamond Q |
EI01126 |
EzSelect Diamond CD-S |
EI05526 |
EzSelect MegaPoly BXS |
EI05726 |
Affinity chromatography
Column |
Cat.No. |
Pack size |
EzSelect AT Protein A Diamond |
EA02726 |
8×600μL |
EzSelect AT Protein A Plus |
EA03626 |
8×600μL |
EzSelect Extrem A Diamond |
EA04526 |
8×600μL |
EzSelect Novo-A Diamond |
EA05026 |
8×600μL |
EzSelect Diamond Protein L |
EA05126 |
8×600μL |
EzSelect AT Protein A Ultra |
EA05726 |
8×600μL |