AZUR SYSTEMIllustration
Chromatography Supplies
Syringe Filters
Filter small sample volumes with a syringe. Confirm solvent compatibility, analyte adsorption, membrane diameter and connections.
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AZUR SYSTEMIllustration
LABORATORY / Chromatography Supplies
Membrane Discs
For use with reusable holders. Select membrane material, diameter and pore rating around the analytical method.
- Product type
- Chromatography Supplies
- Material options
- Multiple media options
- Specifications
- Confirmed by model and process
Images and specifications refer to the indicated models. Contact us to confirm configuration and suitability.
Construction & operating principle
A membrane disc is a flat filtration medium installed in a reusable holder. The membrane performs separation, a support carries differential pressure, and a gasket defines the active area. Correct assembly prevents bypass. Discs allow convenient material changes and retrieval of retained particles, but introduce cleaning, handling and sealing steps that a preassembled filter avoids.
Typical uses
- Particle separation in laboratory liquids
- Collection of retained particles for microscopy
- Comparison of membrane materials in a common holder
Compare product approaches
| Selection factor | What to compare |
|---|---|
| Disc diameter | The membrane must cover the sealing region without folding at its edge. |
| Support | Thin films need suitable support; install composite membranes in the specified orientation. |
| Analytical target | Filtrate analysis prioritises recovery, while retained-particle analysis also depends on membrane background. |
Selection information to confirm
| Category | Chromatography Supplies |
|---|---|
| Material options | Multiple media options |
| Filtration objective | Define what to remove and what to retain |
| Rating / Dimensions | Confirm combinations against controlled model specifications |
| Flow / Temperature / Pressure | Specify normal and limiting operating conditions |
| Connections / Seals | Confirm installation interfaces and wetted materials |
| Cleaning / Validation | Confirm the service cycle and acceptance criteria |
These are selection inputs, not verified performance claims for a specific model.
Build a clear application brief
Use the worksheet to collect your operating conditions. Contact us for controlled datasheets, dimensional drawings or validation documents for a specific model.
Product selection worksheet · TXT ↓Request technical documents ↗Use & maintenance
- 01
Assembly
Handle the edge with appropriate tools, keeping the membrane flat and the gasket free of particles.
- 02
Filtration
Establish pressure gradually and inspect for leakage; bubbles and dry areas reduce useful filtration area.
- 03
Transfer
Record sample identity and orientation, limiting contact and uncontrolled drying before examination.
Product questions
Why are particles still present?
Check disc size, support and gasket sealing before attributing the result to membrane retention.
Can the disc be reused?
Only with a suitable validated method. Restored flow does not establish restored retention or analytical cleanliness.
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