Laboratory Filtration Consumable Supplier
Lab Filtration & Purification Collection
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Improve your lab's filtration process with high-quality lab filtration equipment
Cofilters as a Lab Purify Concentrate Sterile Filters Consumable Equipment Supplier, supply products: syringe filters, centrifugal filters, sterile gridded membrane vacuum filters, vent filters, capsule filters.
Lab Filtration & Purification Product Consumables
Featured Lab Filtration & Purification
Applications
Sterile Filtration
Harvesting
Buffer Exchange
Particle Analysis
Concerned about particulate matter in lab sample filter?
Step 1: Identify the nature of your sample
Choosing the appropriate laboratory filter involves a 3-step procedures, begin selecting your lab filter by determining the nature of your sample with the guidelines below:
- Aqueous: wwPTFE, Nylon, PVDF, and Supor PES
- Non Polar: CR/PTFE, wwPTFE, and MS PTFE
- Protein: wwPTFE and GH PVDF
- Ion Chromatography: Supor PES
Step 2: Determine your column particle size
The particle micron size within your column is significant. Once you’ve identified the nature of your sample, align your column with the appropriate filter using the following guidelines:
Micron size >3 µm: filter pore size of 0.45 µm – HPLC
Micron size <3 µm: filter pore size of 0.20 µm – UPLC
Step 3: Determine your sample volume in mL uL
Check the volume of your sample when determining the most suitable laboratory filter for your requirements:
- Sample volume <2 mL: 4 mm filter and <10 µL hold up
- Sample volume <10 mL: 13 mm minispike and <14 µL hold up
- Sample volume <10 mL: 13 mm male Luer and <30 µL hold up
- Sample volume <100 mL: 25 mm filter and <100 µL hold up

Cofilters Lab Filtration & Purification Products Offer:
Explore a wide array of filtration and purification application notes and white papers offering optimization tips, application outcomes, and case studies.
Rely on a diverse selection of technical guides for lab filtration and purification products to assist you in choosing and implementing best practices.
Determine the most suitable lab filtration and purification product for your needs, and discover optimization techniques through demonstrations and sample packs.
Sartorius offers a variety of lab filtration and purification products with quality certifications to meet your quality and compliance needs.
Frequently Asked Questions
What is Laboratory Filtration?
Laboratory filtration is the process of separating solid particles from liquids or gases in a lab. It’s crucial for purifying samples, removing impurities, and aiding analysis or experiments by passing mixtures through a filter medium that selectively retains unwanted particles. This technique is widely used in scientific fields like chemistry, biology, environmental science, and pharmaceutical research to ensure accurate results.
What equipment is used in the laboratory for filtration?
Laboratory filtration equipment includes filter flasks, funnels, vacuum pumps, Büchner funnels, filter holders, syringe filters, membrane filtration systems, centrifuges, and filter paper or membranes.
What is the difference between lab consumables and equipment?
Lab consumables are items that are used up during the course of experiments or analyses, such as gloves, test tubes, pipette tips, and filter paper. They are typically single-use or have a limited lifespan.
Lab equipment, on the other hand, refers to the instruments and apparatus used for various laboratory procedures and experiments, such as microscopes, centrifuges, balances, and spectrophotometers. Unlike consumables, lab equipment is generally reusable and is used to facilitate a wide range of experiments or analyses.
How do I choose a filter for lab?
When selecting a lab filter, consider its purpose, compatibility with substances, pore size, filtration method, material, sterility, quantity, size, and cost to ensure it meets your specific needs effectively and efficiently.
Do you provide certificates of conformance (CoC) with syringe filter orders?
Certainly, certificates of conformance (CoC) are available with syringe filter orders upon request. Remember to ask for the certificate when placing your order.
What are the filtration processes?
Filtration processes include gravity, vacuum, pressure, centrifugal, membrane, depth, and crossflow filtration. They separate solids from liquids or gases using various methods like gravity, suction, pressure, centrifugal force, or membrane permeability, chosen based on specific needs and substance properties.
Which membrane filter should I use?
The membrane filter choice depends on the sample, target molecule/particle, and filtration method. Each membrane has unique specifications. For instance, regenerated cellulose (RC) is suitable for a pH range of 3-14, offers high solvent resistance, low non-specific adsorption, and a high flow rate, making it versatile for liquid sample applications. Polytetrafluoroethylene (PTFE) accommodates a pH range of 1-14, with high solvent resistance, a high flow rate, and low non-specific adsorption. However, it’s hydrophilic, thus preferred for solvent or gas applications.
Got a filtration question you need solving?
Whether it’s about finding the right filter for your application or tackling a tricky science problem, I’m here to help you turn your ideas into reality. Let’s conquer those big science challenges together!