UNIFILTER® Filtration Microplates

> UNIFILTER Microplate

The unique drip director design of Whatman UNIFILTER microplates ensures precise collection of the filtrate to allow for further processing and analysis. UNIFILTER microplates are available in a range of well volumes from 100 µL to 10 mL.

Features and Benefits

• No crosstalk. Patented integral filter design prevents well-to-well cross contamination
• Economical to use. Wide range of well volume options ensures efficient use of materials
• Better control. Choice of filter media allows control of the flow rates and retention characteristics
• Versatile. A broad range of filtration media is available including glass fibre, polypropylene, cellulose nitrate, cellulose acetate, nylon and ion exchange cellulose

96 Well 800 µL UNIFILTER microplate

> 96 Well 800 µL UNIFILTER microplate

The microplate has a well volume of 800µL which is ideal for standard DNA plasmid miniprep chemistries. The choice of short or long drip directors is application specific. The UNIFILTER 800µL is constructed from rigid high grade polystyrene.

• Multiwell accessories
  

> BugStopper microplate capmat

Sterile Venting Closures for Microplate Cultures

• More efficient than plastic lids. Perfect for extended growth of slow growing bacteria and fungi
• Positive seal for every well. Significantly reduces evaporation rate and eliminates well-to-well cross-contamination
• Autoclave and re-use. Cost-effective; repeated autoclave cycles do not affect gas exchange or retention capabilities
• Rated 99.9% efficient for bacteria and viruses. Restricts microorganisms while allowing H₂O and CO₂ to pass through the membrane
• Prevents aerosol formation. Suitable for growth of infectious microorganisms

• membrane filters

membrane filters

membrane filters

To access the range of Whatman Membrane Filters, please click on the links on the navigation box to the right.

Anodisc inorganic membranes > Anodisc inorganic membranes The Anopore® inorganic membrane is ideal for a wide range of laboratory filtration applications. This unique material has a precise, non-deformable honeycomb pore structure with no lateral crossovers between individual pores.that filters at precisely the stated cutoff, allowing no larger sized particles to pass through the membrane. The Anopore inorganic membrane is composed of a high purity alumina matrix that is manufactured electrochemically. The membrane also exhibits low protein binding, has minimal autofluorescence, is non-toxic and supports cellular growth.  The precise pore structure and narrow pore size distribution of the Anopore membrane ensure a high level of particle removal efficiency. Micro-organisms and particulate material are captured on the surface of the membrane for subsequent analysis by light or electron microscopy. When wet, the membrane is virtually transparent, which means that retained particles do not need to be transferred to another surface before microscopic examination. > Anodisc pore structure > Anodisc pore structure The membrane is hydrophilic and is compatible with most solvents and aqueous material. No monomers, plasticizers, adhesives, surfactants or wetting agents are used in the manufacturing process, which eliminates sample contamination and ensures low protein binding and minimal loss of sample. The Anopore membrane is supplied in the form of Anodisc membrane filters. The membrane is peripherally bonded to an annular polypropylene ring (except the 13 mm diameter disc) for ease of handling and is suitable for both vacuum and pressure filtration. Anopore is available in 3 nominal pore sizes: 0.02µm, 0.1µm and 0.2µm and in 3 disposable syringe filter housings: 13mm, 25mm and 47mm. Features and Benefits High pore density and narrow pore size distribution make it an extremely precise membrane Wide solvent compatibility reduces the need to stock a variety of membranes in the laboratory No additives used in the manufacturing process ensures minimal extractables and no sample contamination Extremely low protein binding minimizes sample loss Virtually transparent when wet making it ideal for microscopy studies Applications HPLC mobile phase filtration and degassing Ultra cleaning of solvents Gravimetric analysis Liposome extrusion Scanning electron microscopy studies Bacterial analysis by epifluorescence light microscopy Micrometer and nanometer filtration Metal nanorods formation Typical Data   Anodisc 13 Anodisc 25 Anodisc 47 Average Membrane Thickness 60 µm 60 µm 60 µm Membrane Diameter 13 mm 21 mm 43 mm Membrane Type Anopore       aluminum oxide     Support Ring Material None Polypropylene Polypropylene Construction Process None Thermal weld Thermal weld Protein Adsorption Low Low Low Burst Strength 65–110 psi 65–110 psi 65–110 psi Maximum Service Temperature 400°C 400°C 400°C Porosity 25-50% 25-50% 25-50% Autoclavable Yes No No Refractive Index 1.6 1.6 1.6 Ordering Information - Diameter (mm) Diameter (mm) Pore Size (µm) Membrane Catalogue Number Hydrophilic Protein Binding Solvent Resistance Quantity/Pack 13 Anodisc 13* 0.02 6809-7003 Yes Low Very Good 100 13 Anodisc 13* 0.1 6809-7013 Yes Low Very Good 100 13 Anodisc 13* 0.2 6809-7023 Yes Low Very Good 100 25 Anodisc 25 0.02 6809-6002 Yes Low Very Good 50 25 Anodisc 25 0.1 6809-6012 Yes Low Very Good 50 25 Anodisc 25 0.2 6809-6022 Yes Low Very Good 50 47 Anodisc 47 0.02 6809-5002 Yes Low Very Good 50 47 Anodisc 47 0.1 6809-5012 Yes Low Very Good 50 47 Anodisc 47 0.2 6809-5022 Yes Low Very Good 50

• Protein precipitation UNIFILTER FF

> Protein precipitation UNIFILTER FF

Protein precipitation UNIFILTER® FF

The Whatman Protein Precipitation UNIFILTER FF (Fast Flow)is optimized for removing acetonitrile-precipitated proteins from plasma or serum samples. Made with 2 mL, 96 well, rigid glass-filled polypropylene microplates, the Whatman Protein Precipitation UNIFILTER is both robust and chemically resistant.
 

The plates contain specially formulated dual membranes with two distinct layers. The top layer acts as a prefilter to remove coarse particulates. The bottom layer is oleophobic for retaining the well contents without dripping. This provides a final filter for removing fine particulate matter when a vacuum is applied. The plates are available in the following well bottom formats: Standard; Fast Flow; Round Bottom and "V" Bottom.

• 96 samples purified at the same time
• Purified samples available in less than 10 minutes
• Precipitation and filtration in the same well
• No laborious pipetting and/or centrifugation required and minimal liquid handling
• Dual Whatman filter media
• Ensures no fluid loss during incubation and fast flow during filtration
• Over 98% protein removal
• Sample volumes up to 150µL for plasma and 200µL for serum
• SBS compatible with the exception of the "V" bottom plate
• Robotics friendly

	> 384 Well DNA binding UNIFILTER 384 Well DNA binding UNIFILTER® The 384 Well DNA Binding UNIFILTER plate effectively binds and purifies DNA molecules. It provides highly reproducible results with yields exceeding 2 µg/well, from bind-wash-elute processing with collection by filtration. Minimal liquid hang up allows for reduced elution volume, enabling DNA concentration as high as 150 ng/µL. Further ethanol precipitation is unnecessary. The DNA is ready to use.   Features and Benefits High efficiency bind-wash-elute processing with collection by filtration simplifies automation with no cross contamination Highly reproducible results yielding DNA purity exceeding 2µg per well sufficient for sensitive downstream applications Minimal liquid hang up allows for reduced elution volume with DNA concentration as high as 150ng/µL Ordering Information - 384 Well DNA Binding UNIFILTER® Catalogue Number Well Format Well Volume (µL) Plate Material Filter Media Quantity/Case 7700-2110 384 100 Clear Polystyrene DNA Binding 50 7701-1100 384 100 Clear Polystyrene N/A 50 Flexible capmats   > Flexible capmats Flexible capmats Whatman flexible capmats individually seal the top of each well. Capmats may be used on either filter or collection microplates.    Ordering Information Capmats Catalogue Number Well Format Capmat Material Microplate Compatibility Quantity/Case 7704-0004 96 Square Format EVA 2 mL microplates 100 7704-0005 96 Round Format EVA 750 µL and 800 µL microplates 100 7704-0006 48 Rectangular Format EVA 5 mL microplates 100 7704-0007 24 Square Format Santoprene 10 mL microplates 100 7704-0015 384 Square Format Santoprene 400 µL microplate 100 Pierceable Capmats 7704-0104 96 Square Format Silicone 2 mL microplates 50 7704-0105 96 Round Format Silicone 300 µL, 750 µL and 800 µL microplates 50 7704-0115 384 Square Format Silicone 100 µL and 400 µL microplates 50 Venting Capmats (autoclavable) 7704-0014 24 BugStopper Venting 10 mL microplates 5

Bulk silica media for column chromatography

> Bulk silica media for column chromatography

Features and Benefits

• High resolution
• Good flow characteristics
• High surface area

NEW Purasil 60Å Silica Gel

Silica Gel Media for Flash Chromatography 
Whatman Purasil high purity silica gel provides an excellent separation medium for flash chromatography purification of target molecules. Narrow particle size distribution and minimal fines enable fast separations with no loss of chromatographic performance.

Features and Benefits

• High resolution
• Excellent flow rates
• Direct scalability

Collection plates

> Collection plates

To access the range of Whatman Collection Plates, please click on the links on the navigation box to the right.