Caplugs® Evergreen 5" Polystyrene Sample Preparation Columns with Fine Filters (15–45 µm), Non-Sterile, 200/Bag
The Caplugs® Evergreen 5" Sample Preparation Columns are molded from clear polystyrene (PS) and fitted with integral fine frits rated at 15–45 microns for reproducible gravity-flow separations. Bench scientists rely on these columns for resin-based protein and peptide purification, small-scale solid-phase extraction, and manual chromatography workflows where controlled, particulate-free flow matters.
Technical Specifications
| Product Type | Sample Preparation Columns (gravity-flow) |
| Volume/Size | 5" length |
| Material | Polystyrene (PS) |
| Filter | Fine frit, 15–45 micron pore |
| Sterility | Non-Sterile |
| Pack Size | 200/Bag |
| Country of Origin | USA |
Applications
- Gravity-flow resin packing for protein and peptide purification
- Manual solid-phase extraction (SPE) and small-scale cleanup
- Affinity and ion-exchange chromatography at the bench
- Buffer exchange and desalting with packed media beds
- Sample fractionation and metabolite preparation
- Teaching and method-development separations in research labs
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping these columns from US inventory, and the product is Made in USA. Each bag carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact us for volume quotes on SKU 208-3368-050.
Frequently Asked Questions
What is the filter pore rating on these columns?
Each column includes a fine frit rated at 15–45 microns, retaining packed resin and particulates while allowing controlled gravity-driven flow of buffers and sample.
Are these sample preparation columns sterile?
No. These columns ship non-sterile and are intended for research and method-development use. Users requiring sterile conditions should validate their own decontamination or autoclave protocols against polystyrene's temperature limits.
What material are the columns made from?
The column bodies are molded from clear polystyrene (PS), offering good optical clarity for monitoring bed packing and flow during purification.
How are the columns packaged and sold?
They are supplied 200 columns per bag (200/Bag), priced per pack. Lot numbers on each bag support documentation for accredited laboratory workflows.