Caplugs® Evergreen 5" Polypropylene Sample Preparation Columns with Coarse Filters (90-135 µm), Non-Sterile, 200/Bag
These 5" Sample Preparation Columns with Coarse Filters are molded from polypropylene (PP) and fitted with an integral 90-135 micron coarse frit, supporting gravity-flow purification, solid-phase extraction, and resin-based separations. The open-column format suits manual loading of beads, gels, and slurry resins in protein and nucleic-acid workflows.
Technical Specifications
| Product Type | Sample Preparation Columns with Coarse Filters |
| Column Length | 5" |
| Material | Polypropylene (PP) |
| Filter / Frit | Coarse, 90-135 microns |
| Sterility | Non-Sterile |
| Pack Size | 200/Bag |
| Country of Origin | USA |
Applications
- Gravity-flow chromatography with packed bead or gel resins
- Manual solid-phase extraction (SPE) of biological samples
- Affinity and ion-exchange resin purification of proteins
- Desalting and buffer-exchange preparation steps
- Coarse filtration of slurries to retain large particulates while passing liquid
- Bench-scale sample cleanup ahead of HPLC or mass-spec analysis
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory, with these columns 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 on bulk orders—contact our procurement team for volume quotes.
Frequently Asked Questions
What pore size is the coarse filter in these columns?
The integral frit is a coarse-grade filter rated at 90-135 microns, designed to retain larger particulates and resin beads while allowing liquid to flow through under gravity.
Are these sample preparation columns sterile?
No. These columns are supplied non-sterile. If your protocol requires sterility, validate an appropriate decontamination method compatible with polypropylene before use.
What material are the columns made from?
The columns are molded from polypropylene (PP), which offers broad chemical tolerance for common aqueous buffers, salts, and many organic solvents used in sample prep.
How are these columns packaged and sold?
They are sold 200 columns per bag (200/Bag). Pricing is per pack, and tiered institutional or grant pricing is available for larger quantities.