AZUR SYSTEMIllustration
Chromatography Supplies
Membrane Discs
For use with reusable holders. Select membrane material, diameter and pore rating around the analytical method.
Multiple media optionsExplore ↗
AZUR SYSTEMIllustration
LABORATORY / Chromatography Supplies
Syringe Filters
Filter small sample volumes with a syringe. Confirm solvent compatibility, analyte adsorption, membrane diameter and connections.
- 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 syringe filter seals a membrane disc inside a compact housing. Pressure from the syringe drives liquid through the membrane while suspended particles remain upstream. This format supports small-volume preparation before chromatography. Membrane chemistry, housing materials and retained liquid can all influence recovery, so pore size alone does not describe suitability for an analytical method.
Typical uses
- Particle removal before HPLC injection
- Preparation of compatible solvent-based samples
- Membrane comparisons during analytical method development
Compare product approaches
| Selection factor | What to compare |
|---|---|
| Membrane chemistry | Assess aqueous, organic and mixed solvents separately; compare adsorption with recovery controls. |
| Filtration area | Small discs reduce hold-up, while larger areas accommodate greater particulate loading. |
| Packaging | Analytical and aseptic workflows require different packaging; sterile packaging is not process validation. |
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
Before filtration
Run a solvent blank and an unfiltered control to distinguish extractables from sample constituents.
- 02
During filtration
Apply steady pressure; rising resistance calls for replacement rather than forceful pushing.
- 03
Collection
Validate any initial discard volume and include retained liquid in the sample mass balance.
Product questions
Is a smaller pore always better?
It can increase resistance and blockage. Match the rating to instrument protection and demonstrated sample recovery.
Why did peak area decrease?
Investigate adsorption, dilution and hold-up by comparing membranes and filtered versus unfiltered controls.
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