Syringe Filters
Syringe filters are single-use, membrane-based filtration devices designed for quick and efficient filtration of small-volume liquids. They are commonly used in laboratory and industrial workflows for sample preparation, sterilization, and particulate removal. These compact filters attach directly to the end of a syringe and come in various pore sizes and membrane materials to suit specific applications.
Technical Features:
- Compact Design:
- Cylindrical plastic housing containing a membrane filter, typically made of polypropylene, polycarbonate, or other durable polymers.
- Membrane Materials:
- Nylon: General-purpose use with aqueous and organic solvents.
- PTFE (Polytetrafluoroethylene): High chemical resistance, suitable for aggressive solvents.
- PES (Polyethersulfone): Low protein binding, ideal for biological samples.
- PVDF (Polyvinylidene Fluoride): Sterile filtration and low protein binding.
- Cellulose Acetate: Excellent for aqueous solutions.
- Pore Sizes:
- Range from 0.1 µm to 5.0 µm, with common sizes being 0.22 µm for sterilization and 0.45 µm for particulate removal.
- Diameter Options:
- Available in sizes from 4 mm to 50 mm, with larger sizes designed for higher volumes.
Applications:
- HPLC (High-Performance Liquid Chromatography):
- Protects columns and instruments by removing particulates from mobile phases or samples.
- Biological Applications:
- Used to sterilize culture media, proteins, enzymes, and other biological solutions.
- Environmental Testing:
- Filters water, air, or soil extracts for analysis.
- Pharmaceutical Industry:
- Ensures contaminant-free solutions in drug formulation and quality control processes.
Advantages:
- Convenience:
- Easy to use, directly compatible with syringes for quick filtration.
- High Efficiency:
- Provides precise filtration with minimal sample loss.
- Chemical Versatility:
- Wide range of membrane materials for compatibility with various solvents and solutions.
- Sterile Options:
- Pre-sterilized filters available for critical applications.
Syringe filters are indispensable tools for applications requiring quick, efficient, and precise filtration of small liquid volumes. Their versatility and reliability make them essential in research, pharmaceuticals, and environmental testing.
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