pH Limits: 2 to 12 Suggested Temperature Limit: 60°C  Organic Solvent Tolerance: Good Composed of cellulose regenerated from cotton linters, offered in various pore sizes with molecular weight cutoffs (MWCO) ranging from 1,000 to 50,000 Contains glycerol added as a…

Because Standard Regenerated Cellulose (RC) is composed of natural cellulose regenerated from cotton linters, these membranes are perfectly suited for a broad range of laboratory dialysis. This clear and flexible membrane type with a symmetric porosity is economical and sturdy, ideal for desalting,…

Eliminates tying knots One piece, autoclavable, polypropylene devices Locks over the ends of tubing to form a strong leakproof seal For best results, choose a closure that is 4 to 10 mm longer than the flat width of the tubing These liquid-tight closures are available in six…

The Pur-A-Lyzer Dialysis Kits are an innovative dialysis tubing that can be conveniently loaded and unloaded using any standard pipette tip while still allowing for 98% sample recovery yield. The revolutionary design of the Pur-A-Lyzer Tube makes it the only dialysis tool which enables true high…

Dialysis is a popular technique used for the exchange of buffer medium across semi-permeable membranes. Dialysis devices are available in many configurations for research applications. We offer innovative dialysis devices and accessories for processing small samples. Small sample dialysis has…

Only Spectrum offers Biotech grade dialysis membrane for those critical applications requiring stringent MWCO's and membrane purity. Since these synthetic disalysis membranes are made using a process free of heavy metal contaminants and sulfides, they are ultra-pure and require no cleaning or…

Clamping closures gently lock over dialysis tubing, providing a leakproof seal without knots. Can be used with cellulose ester, regenerated cellulose, and PVDF dialysis membranes. Made entirely of Nylon 66, closures have an operating temperature range of 0-90C, and can be sterilized with ethylene…

Typical molecular weight cut-off = 14,000.

The Pur-A-Lyzer Dialysis Kits are an innovative dialysis tubing that can be conveniently loaded and unloaded using any standard pipette tip while still allowing for 98% sample recovery yield.The revolutionary design of the Pur-A-Lyzer Tube makes it the only dialysis tool which enables true high…

Designed to maximize convenience and efficiency, Spectrum's ready-to-use Micro Float-A-Lyzer is ideal for the diaylysis of very small sample volumes. Available in two volume sizes,100-200 µl and 400-500 µl, the Micro Float-A-Lyzer features Spectrum's proprietary Biotech Grade Cellulose Ester (CE)…

Spectrum's Tube-A-Lyzer is a ready-to-use, gentle separation device that combines convenience and disposability with the efficiency of dynamic dialysis to significantly increase the mass transfer rate and reduce the overall dialysis from 1-2 days to 12 hours. This self-contained, disposable device…

Pre-cut membrane discs for use with Spectra/Por MacroDialyzers. Cut square membrane sheets to use as needed for a variety of dialysis equipment.

Typical molecular weight cut-off = 14,000.

The Pur-A-Lyzer Dialysis Kits are an innovative dialysis tubing that can be conveniently loaded and unloaded using any standard pipette tip while still allowing for 98% sample recovery yield. The revolutionary design of the Pur-A-Lyzer Tube makes it the only dialysis tool which enables true high…

Typical molecular weight cut-off = 14,000.

Typical molecular weight cut-off = 14,000.

Dialysis Processing Reservoir, 10L capacity, polypropylene with 4 port dip tube and drain. For single-pass and recirculation system operation. Includes reservoir, gaskets, sanitary clamps and hose barb adaptors for MasterFlex® L/S® 16, 17 and 73 tubing. Dialysis Processing Reservoir, 20L…

Storage: 2-8C Application: Cellulose tubing, benzoylated to reduce pore size. Useful for separating compounds with a molecular weight of 2,000.

Retains >99% of cytochrome c (M.W. 12,400) in solution over a 10-hour period.

Spectrum introduces the Spectra/Por® Float-A-Lyzer® G2, the next generation in Ready-to-Use laboratory dialysis devices featuring proprietary Ultra-pure Biotech Cellulose Ester (CE) Membrane available in 9 precise MWCO's with no heavy metal and sulfide contaminants. The cylindrical tubing geometry…

Designed for the general dialysis of larger sample volumes, the Ready-to-Use Sack consists of a 60 cm length of Spectra/Por 1, 2, 3 or 4 tubing, sealed at one end with a Spectra/Por Closure and a funnel attached to the other for easy filling. Simply fill, apply closure & cut.

The Pur-A-Lyzer Dialysis Kits are an innovative dialysis tubing that can be conveniently loaded and unloaded using any standard pipette tip while still allowing for 98% sample recovery yield. The revolutionary design of the Pur-A-Lyzer Tube makes it the only dialysis tool which enables true…

Synonyms: Dialyzers; High through put dialysis tubing Legal Information: Pur-A-Lyzer is a trademark of Sigma-Aldrich Co. LLC

Two dialysis tanks specifically designed for use with the Tube-O-DIALYZER ™ . Two sizes are available that are suitable for Micro and Medi size Tube-O-DIALYZER ™ . Each tank will accommodate 7 Tube-O-DIALYZER ™ and are supplied with floats.

Implantation of individual micro-dialysis hollow fibers are ideal for the recovery or introduction of micro-quantity biologicals or pharmaceutical materials in a localized tissue environment. After injecting sample into the lumen with a syringe, simply dip the ends of the fiber in epoxy to seal,…

PharmaPure® tubing with good peristaltic pump head life and is kink resistant. MasterFlex® L/S® 16 tubing, 1/8" ID x 1/4" OD, 10ft. PharmaPure® tubing with good peristaltic pump head life and is kink resistant. MasterFlex® L/S® 17 tubing, 1/4" ID x…

Closure kit includes 5 sets designed for sealing dialysis tubing ≤ 32mm flat width for Lab Scale System. Each set includes 1 hanging closure, 1 top closure and 2 bottom weighted closures. Closure kit includes 5 sets designed for sealing dialysis tubing ≤ 31mm flat width for Process Scale…

Extended life Pt-cured silicone tubing with moderate peristalitic pump head life. Semi-transparent MasterFlex® L/S® 16 tubing, 1/8" ID x 1/4" OD, 10ft. Extended life Pt-cured silicone tubing with moderate peristalitic pump head life. Semi-transparent MasterFlex® L/S® 17…

Since Spectra/Por Standard Closures float, they aid in buoyancy and vertical orientation when applied to the tubing top end. Autoclavable and available in a variety of colors for easy sample identification. For use with Spectra/Por Standard Regenerated Cellulose membranes only.

Specially designed with gentle sealing ridges, Universal Closures are the ideal all-purpose closure that creates a reliable seal with all membrane grades, types and thicknesses. Available in a variety of colors for easy sample identification.

Tube-O-CONCENTRATOR™ is a versatile concentration device that utilizes a novel, water absorbing, liquid polymer and our patented Tube-O-DIALYZER™ for the rapid concentration of dilute protein solutions with zero protein loss. The unique tube design of Tube-O-DIALYZER™ ensures that…

Cellulose tubing; will retain proteins with M.W. > 12,000 Da Inflated diam. approx. 16 mm (0.64 in.); pre-cut; open ended; dry, unwashed; approx. length = 30 cm (12 in.)