These Costar® Spin-X® centrifuge tube filters have a 0.22µm pore CA membrane-containing filter unit within a 500µL capacity polypropylene microcentrifuge tube.
• Centrifugal filter units have a cellulose acetate (CA) membrane which provide fast flow rates and low protein binding • Ideal for removing bacteria, particles, or cells from liquids, HPLC sample preparation and DNA removal from agarose or acrylamide gels. • Sterile and certified nonpyrogenic and DNase-/RNase-free. • Maximum Relative Centrifugal Force is 16,000xg.
Millipore's Amicon Centriplus™ centrifugal concentrator filter unit is ideal for concentration of dilute enzymes, antigens, antibodies, viruses ando other macro-molecules. These centrifugal filters are manufactured with a polypropylene centrifuge tube housing and incorporate a low-binding Ultracel YM regenerated cellulose ultrafiltration membrane filter.
Use of these concentratration filtering devices employs an inverted spin method which combines two spin stages - resulting in extremely high sample recovery. Centrifugal concentrator devices include a sample reservoir, sturdy base, retention filtrate vial and secure, leak-proof caps. Devices are recommended for samples with less than 1mg/mL total protein. Maximum sample volume is 15mL. Max RCF: 3,000 x g in either a swing-bucket or fixed-angle rotor. Filtration area: 2.34cm2. Minimum Final Concentrated Sample Volume: 50µL. Concentrator O.D. x Length: 29 x 110mm.
The Millipore Amicon® Ultra 0.5mL centrifugal filter device is supplied with two microcentrifuge tubes. During operation, one microcentrifuge tube is used to collect filtrate; the other tube is to recover the concentrated sample. These centrifugal devices concentrate 0.5mL samples down to 15µL with a concentration factor of anywhere from 25x to 30x. Amicon® Ultra centrifugal concentrators provide a high sample recovery rate of 90% or better from the beginning sample solution.
Process samples quickly – normally from 10 to 30-minutes. Amicon® Ultra centrifugal filters are also ideal for reverse spin methods which provide very consistent recovery results. Recommended for use with fixed-angle microcentrifuge rotors. Max RCF: 14,000 x g for Concentration Spin; 1,000 x g for Reverse Spin. Filter Device O.D. x Length: 9.4 x 29.6mm. Centrifuge Tube O.D. x Length: 10.8 x 43mm.
Millipore Amicon® Ultra-4 centrifugal filter concentrators provide your lab highly reproducible protein assay purification results without denaturing the sample, losing enzymatic activity or binding functions. These filtering concentrators allow for concentration without compromising yields -- even if your sample is labile or low in abundance. These centrifugal filters feature a regenerated cellulose membrane which provides fast, gentle sample concentration, desalting and fractioning of your proteins and buffer exchanges. They provide high retentate recovery of greater than 90% with a heat-sealed membrane which minimizes downstream extractables. Concentration factors range between 80 to 100X.
Millipore Amicon® Ultra-15 centrifugal filter concentrators provide highly reproducible protein assay purification results without denaturing the sample, losing enzymatic activity or binding functions. These centrifugal concentrator filters allow for concentration without compromising yields -- even if your sample is labile or low in abundance. Concentrators feature a regenerated cellulose membrane which provides fast, gentle sample concentration, desalting and fractioning of your proteins and buffer exchanges. Centrifugal filters provide high retentate recovery of greater than 90% with a heat-sealed membrane which minimizes downstream extractables. Concentration factors range between 80 to 100X.
Millipore's Centricon® Plus-70 centrifugal filter is a disposable, single-use device designed for rapid clarification and purification processing of aqueous biological solutions in volumes ranging from 15 to 70mL. These centrifugal filtering concentrators are compatible with swing-bucket centrifuge rotors only. The Centricon® Plus-70 concentration filtering device can concentrate most 70mL solutions down to 350μL in 15 to 40 minutes. Samples can be centrifuged up to a maximum of 3,500 × g until the desired concentration is achieved. More or less time may be required depending on solute type and the sample concentration needed.
Millipore Centrifree® Ultrafiltration centrifugal filters are designed for routine separation of free from bound microsolute in serum, plasma, and other biological samples. These centrifugal filtering separation devices are also designed identify free therapeutic drugs, testosterone and thyroxin. Centrifree® centrifugal filters are also commonly used in binding studies, new drug investigations and de-proteinization. Centrifugal concentratory filters are reusable.
Millipore's Centriprep™ 15mL Centrifugal Filter Unit is ideal for protein concentration and purification of particle filled solutions or high concentrations. These unique centrifugal filter devices are able to separate low molecular weight solutes from cell culture media, cell lysates or even fermentation broths. They feature a unique flow mode with a large deadstop for fast sample processing. Centrifugal filter units incorporate a Millipore Ultracel YM filter membrane which is made from a highly purified form of regenerated cellulose filter material. Sample reservoir and filtrate collector are constructed of clear polycarbonate plastic. Twist-Lock cap and Air-Seal cap are made from durable nylon and polypropylene plastic respectively. Recommended for use with a 50mL centrifuge tube in either a swing bucket or fixed-angle rotor. Max volume capacity is 12mL to 15mL. Typical final concentrate resulting volume is 3mL after one spin.
Millipore Microcon® centrifugal filter concentrators are the lab standard for sub-microliter volumes. These centrifugal concentrators are ideal for protein, nucleic acid concentration, de-salting and buffer exchange or removal of primers, linkers and unincorporated labels. Fore effective results, Microcon® centrifugal filter units require centrifugation in a fixed-angle microcentrifuge rotor with a maximum RCF of 14,000 x g. Solute recoveries are normally greater than 95% which are ideal for dilute (ng.mL ranger) protein solutions. Filter units have a deadstop for reproducible concentrate volumes. Use of an inverted spin for concentration retrieval maximizes recovery. The filter contains a low-binding Ultracel YM-10 membrane filter. Color coding indicates the nominal molecular weight limit (NMWL). The filtered sample is normally stored in a standard microcentrifuge tube. 1.5mL size microcentrifuge tubes are recommended for use with these centrifugal filter devices.
Millipore Ultrafree® centrifugal filter devices provide your lab with rapid concentration, desalting and purificationin 10 minutes or less normally. This centrifugal concentrator filter is designed with a vertically oriented polyethersulfone membrane for efficient and consistent sample processing. The devices are designed to concentrate, prepare and purify biological samples of up to a 0.5mL sample size. Filters include a Millipore Biomax polyethersulfone membrane with a specific NMWL cutoff. Processed sample concentrates can be recovered after only a single spin. Concentration factors range from 50X to 200X, dependent upon the sample type and particulate level. Ultrafree® centrifugal filters may be used with either fixed-angle or swing-bucket centrifuge rotors which accept standard receiver tubes.
Millipore Ultrafree CL centrifugal filter units provide convenient, fast sample preparation with highly reproducible results . Filter inserts fit snugly in to standard 15mL centrifuge tubes. These centrifugal filter units are designed for removal of particles and precipitates from aqueous and mild solvent based samples.
These centrifugal filters are ideal for use with protein and nucleic acid solutions for DNA purification procedures. The unique design of these centrifugal filters minimizes sample handling to avoid significant losses of valuable samples and features low hold-up volumes which allow for high sample recovery. Filters are low protein binding and conveniently color coded to clearly indicate the membrane pore size and materialy type. Non-Sterile.
Millipore Ultrafree MC centrifugal filter units provide convenient, fast sample preparation with highly reproducible results. Filter inserts fit snugly in to standard 1.5mL microcentrifuge tubes. These centrifugal filter units are designed for removal of particles and precipitates from aqueous and mild solvent based samples. They are ideal for use with protein and nucleic acid solutions for DNA purification procedures.
The unique design of these centrifugal filters minimizes sample handling to avoid significant losses of valuable samples and features low hold-up volumes which allow for high sample recovery. Filters are low protein binding and feature silicone o-rings and translucent polypropylene components. Color coded to clearly indicate the membrane pore size and materialy type. Non-Sterile.
The Whatman™ sterile Centrex™ centrifuge tube filter provides the ability to process rapid and simple preparation of a large number of samples. More than six samples can be processed at once. Ideal for automated systems and high-speed batch filtration with robots. They also provide considerably reduced contamination risk when working with radioactive or biologically hazardous materials. Cross contamination is easily avoided with Centrex™ brand centrifuge filters.