Pes(Polyethersulfone) syringe filter sizes

Polyethersulfone (PES) syringe filters are widely used for the filtration of liquids and gases in laboratory and industrial settings. Their unique properties make them suitable for a variety of applications, especially in the fields of biotechnology, pharmaceuticals, and environmental testing.PES filters are known for their excellent chemical resistance, low protein binding, and high flow rates, making them ideal for sterile filtration and sample preparation.

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A syringe filter is a device that fits on the end of a syringe and is used to filter out particles from liquids or gases prior to analysis or further processing. The filter consists of a membrane that allows liquids to pass through while retaining solid particles. PES syringe filters are specifically designed to be hydrophilic, meaning they readily interact with water and aqueous solutions, which increases their filtration efficiency.

Types and Sizes of PES Syringe Filters

PES syringe filters are available in a variety of sizes and configurations to meet the needs of different laboratories. The choice of size is often determined by the sample volume to be filtered and the specific application requirements.

 

Diameter Options:

13 mm: For small volume applications (up to 10 mL). Ideal for filtering samples that require minimal dead volume.

25 mm: A general-purpose size that handles medium sample volumes (up to 50 mL). Often used in routine laboratory applications.

33 mm: Designed for larger volumes (up to 100 mL). This size is often used in environmental testing and pharmaceutical applications.

Pore size options:

0.1 µm: For sterile filtration and mycoplasma removal. This pore size is critical for applications that require a high level of sterility.

0.22 µm: The most commonly used pore size for sterile filtration of biological fluids, culture media, and other aqueous solutions.

0.45 µm: For general filtration tasks where larger particles need to be removed.

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Features of PES Syringe Filters

High solvent recovery with low carryover;

High processing capacity;

Very high microbial removal;

Low protein adsorption and low extractables;

Advantages of using PES Syringe Filters

1. High flow rate

PES membranes are designed to provide high flow rates, reducing the time required for the filtration process. This efficiency is especially important for high-throughput laboratories where time is of the essence.

2. Low Protein Binding

PES materials exhibit low protein binding properties, making them ideal for biological applications where sample integrity must be maintained.

3. Chemical Compatibility

PES filters exhibit excellent chemical resistance to a wide range of solvents and chemicals, allowing them to be used in a variety of laboratory environments without degradation.

4. Sterility Assurance

Most PES syringe filters are sterilized using ethylene oxide or gamma irradiation methods to ensure that they are free of microbial contamination when used.

Step-by-Step Guide to Using PES Syringe Filters

Preparation: Gather all necessary materials, including a sterile syringe filter, a syringe containing the sample to be filtered, and a collection container.

Attach the filter: Remove the protective packaging from the sterile syringe filter. Securely attach the filter to the end of the syringe using a Luer-lock or Luer-slip connector.

Filter the sample: Slowly push down on the syringe plunger to force the sample through the filter and into the collection container.

Avoid pushing the plunger too hard too quickly as this may cause breakage or leakage.

Proper Disposal: Once filtration is complete, follow laboratory safety protocols to dispose of the used filter.

Record Keeping: Record any relevant information about the filtration process, such as the batch number or specific conditions used during filtration.

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Applications of PES Syringe Filters

PES syringe filters are a versatile tool used primarily for the filtration of high temperature liquids and are the preferred choice for ion chromatography samples. They are widely used in various industries for their ability to effectively remove particulate matter from samples.