Ensuring sample purity before analytical injection is vital for protecting sensitive HPLC columns and instrumentation. LabFriend provides an extensive range of syringe filters, located within the filtration section of our distillation, separation, and filtration department. These professional-grade filters are engineered for rapid, reliable clarification of small-volume liquids and gases.
Why Choose Professional Syringe Filters?
Our curated collection of filtration units is designed for high flow rates, low hold-up volumes, and broad chemical compatibility:
- High-Performance PES Membranes: We stock LLG Syringe Filters Spheros PES (0.22 µm and 0.45 µm) in 25 mm diameters, available in sterile and non-sterile packs for rapid aqueous filtration.
- Specialized Sterile Filtration: Utilize Sartorius Minisart NML (0.45 µm) and Minisart NYGF units, trusted for critical sterile venting and liquid clarification in life science research.
- Integrated Sample Prep: Explore GVS Separa Minivials, featuring integrated 0.22 µm or 0.45 µm membranes (Nylon, PES, PTFE) to streamline the filtration and storage process in one step.
- Diverse Membrane Options: Choose from Nylon, PTFE, and PES membranes to match your specific solvent, acid, or protein-binding requirements.
LabFriend supplies syringe filters from the world's leading names in laboratory separation:
- LLG Labware: Offers the Spheros range of cost-effective, high-quality filters for routine laboratory clarification tasks.
- Sartorius: A global pioneer in filtration, providing premium Minisart units for critical analytical and sterile applications.
- GVS: Specializes in innovative Separa minivials that combine filtration and chromatography preparation for maximum efficiency.
The right syringe filter extends the life of your analytical hardware; to further complete your sample preparation or synthesis workflow, we recommend exploring these related categories:
- Membrane Filters: For larger volume vacuum filtration, utilize Sartorius cellulose acetate or nitrate disc membranes.
- Filtration Apparatus: Connect your systems with specialized LLG-filter holders or DWK Duran glass sieve plates.
- Glass Fiber Filters: Use Hahnemühle or Sartorius microfibre discs as pre-filters for samples with high particulate loads.
- In-Line Filters: Protect vacuum lines and equipment during scale-up using Sartorius air filtration units.
Unsure if a PES or PTFE membrane is most compatible with your specific HPLC mobile phase? Our team provides local technical support to help you find the perfect filtration solution with fast shipping and competitive pricing.
Frequently Asked Questions
1. When should I use a PES syringe filter?
PES (Polyethersulfone) membranes, like those in the LLG Spheros range, are ideal for aqueous solutions and provide high flow rates with very low protein binding.
2. What is the advantage of GVS Separa Minivials?
Separa minivials combine a syringe filter, a vial, and a cap into a single device, allowing you to filter your sample directly into the analysis-ready container, reducing handling and contamination risks.
3. Are Sartorius Minisart filters available for sterile applications?
Yes, many Sartorius Minisart units, such as the NML 0.45 µm model, are provided in sterile packaging for critical life science and microbiological workflows.
4. How do I choose the correct pore size?
Typically, a 0.22 µm pore size is used for sterile filtration (removing bacteria), while a 0.45 µm pore size is used for general clarification and removing particulates before HPLC or GC analysis.
