Filtros de membrana
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CHM® nylon membrane filters are membranes of hydrophilic nature and chemically resistant to most bases, making them particularly indicated for clarification and sterilization of alkaline solutions. This type of membranes is compatible with most aqueous samples and some organic solvents, being a good alternative for sterilization and clarification of the… Ver más (+) CHM® nylon membrane filters are membranes of hydrophilic nature and chemically resistant to most bases, making them particularly indicated for clarification and sterilization of alkaline solutions. This type of membranes is compatible with most aqueous samples and some organic solvents, being a good alternative for sterilization and clarification of the mobile phases for HPLC. These membranes have high non-specific adsorption, which makes them very useful in blotting techniques, mainly for transfer and immobilization of nucleic acids. They are not recommended for use sterilizing cellular solutions, for which application it is advisable to use the CHM®MCA cellulose acetate membranes.
Features:
Applications:
Made entirely of polyamide
Sterilization and clarification of aqueous and organic solvent solutions
Hydrophilic
HPLC sample preparation
High non-specific adsorption
Isolating Legionella
High mechanical stability
Low extractables
Sterilization by autoclaving (at 121ºC) or ethylene oxide
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a partir de28,80€
Bajo pedido.Entrega estimada habitualmente entre 5 - 7 días laborables. |
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Cellulose Acetate membranes type MCA, are recommended for the aqueous samples, biological applications and protein filtration.
Filtration membranes are composed of pure cellulose acetate that is internally supported by an inert polyester web.
Its uniform pore size and consistent flow rates ensure reliable performance.
These membranes combine high flow rates… Ver más (+) Cellulose Acetate membranes type MCA, are recommended for the aqueous samples, biological applications and protein filtration.
Filtration membranes are composed of pure cellulose acetate that is internally supported by an inert polyester web.
Its uniform pore size and consistent flow rates ensure reliable performance.
These membranes combine high flow rates and thermal stability with very low adsorption characteristics, making the 0.2 μm pore size perfectly suited for use in disc filter holders to sterilize aqueous solutions, buffers and media. They are also low in extractables and can be repeatedly autoclaved.
They are supplied in four pore sizes, 0.2, 0.45, 0.65 and 0.80 μm, and in seven different diameters, 13, 25, 47, 50, 90, 142 and 293 mm (other diameters available under request).
Features:
Applications:
Hydrophilic membrane
Aqueous solutions filtration
Compatible to aqueous solutions with pH 4-8, most alcohols, hydrocarbons and oils
Protein and enzyme filtration
Low extractables: ensures tests will be clean with consistent results
Biological and clinical analysis
Exceptional dimensional strength and low binding characteristics
Tissue culture media sterilization
High flow rate
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a partir de34,60€
Bajo pedido.Entrega estimada habitualmente entre 5 - 7 días laborables. |
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Cellulose Nitrate membranes for sample pre-treatment, particle testing and chemotaxis.
Available in white, black or green, gridded (3.1 x 3.1 mm) or plain, sterile or non-sterile
They are ready-to use membranes and save preparatory time. Filter identification and lot number are printed on the box or on each… Ver más (+) Cellulose Nitrate membranes for sample pre-treatment, particle testing and chemotaxis.
Available in white, black or green, gridded (3.1 x 3.1 mm) or plain, sterile or non-sterile
They are ready-to use membranes and save preparatory time. Filter identification and lot number are printed on the box or on each individual envelope for the sterile versions.
Features:
Applications:
Hydrophilic
Clarification and sterilisation of aqueous solutions
Made of Cellulose Nitrate. This material assures excellent retention and optimum colony growth
Microbiological analysis and particle counts Particle size analysis
Very uniform pore structure which ensures homogeneous distribution of the particles retained on the filter surface
Pre-filtration and clarification of samples prior to further analysis
Various colours give the best contrast to the colonies which are to be counted
Removal of particles in suspensions to determine the degree of impurity
Maximum temperature 130ºC
Autoclavable
Very high flow rate
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a partir de34,60€
Bajo pedido.Entrega estimada habitualmente entre 5 - 7 días laborables. |
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CHM®MPP polypropylene membrane filters are composed of pure polypropylene with absolute pore size ratings. The exceptionally uniform strength of the device means that the membrane will not crack, tear, break or distort when picked up by hand or forceps.
These filters offer broad chemical compatibility allowing its use with aqueous… Ver más (+) CHM®MPP polypropylene membrane filters are composed of pure polypropylene with absolute pore size ratings. The exceptionally uniform strength of the device means that the membrane will not crack, tear, break or distort when picked up by hand or forceps.
These filters offer broad chemical compatibility allowing its use with aqueous and organic solvent samples.
CHM®MPP polypropylene membrane filters are suitable for numerous applications in chromatography and biotechnology laboratories.
They are available in 0.2 and 0.45 µm pore sizes, and in 5 different diameters: 25, 47, 50, 90 and 142 mm.
Features:
Applications:
Hydrophobic
Used as a support for cell growth, filtration of media and sterilization of tissue culture media
Low extractables
Aqueous and organic solvent filtration
Broad chemical compatibility
Pharmaceuticals and other solutions used for biological work
HPLC sample preparation requiring low detection levels (< 230 nm
Ion chromatography
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a partir de42,30€
Bajo pedido.Entrega estimada habitualmente entre 5 - 7 días laborables. |
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This strong, micro-porous film membrane is constructed from a high temperature polyethersulfone polymer that is acid and base resistant.
These membrane filters are recommended for aqueous solutions biological applications and protein filtration. They are designed to remove particulates during general filtration and their low protein and drug binding characteristics make… Ver más (+) This strong, micro-porous film membrane is constructed from a high temperature polyethersulfone polymer that is acid and base resistant.
These membrane filters are recommended for aqueous solutions biological applications and protein filtration. They are designed to remove particulates during general filtration and their low protein and drug binding characteristics make them ideally suited for use in life science applications. Excellent flow speed, even with viscous liquids They are supplied as standard in pore size 0.2 and 0.45 µm, and with 6 diameters: 13, 25, 47, 50, 90 and 142 mm.
Features:
Applications:
Made entirely from polyethersulfone
Protein and enzyme filtration and sterilization
Hydrophilic
Sterilisation of biological fluids, serum and tissue culture media
Very low non-specific adsorption
Biological and clinical analysis
Low drug and protein binding
Filtration and sterilisation of pharmaceutical solutions
Low extractables
Sterilisation: by autoclaving at 121ºC, with γ-radiation, or ethylene oxide
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a partir de47,20€
Bajo pedido.Entrega estimada habitualmente entre 5 - 7 días laborables. |
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Filtros de membrana con cuadrícula, estériles y empaquetados individualmente, para recuento de colonias en análisis microbiológicos de rutina en control de calidad. Listos para utilizar, identificación del filtro y del lote en cada caja o en cada sobre individual para las versiones estériles.
El tamaño de cuadrícula es de 3… Ver más (+) Filtros de membrana con cuadrícula, estériles y empaquetados individualmente, para recuento de colonias en análisis microbiológicos de rutina en control de calidad. Listos para utilizar, identificación del filtro y del lote en cada caja o en cada sobre individual para las versiones estériles.
El tamaño de cuadrícula es de 3.1 x 3.1 mm disponible en varios colores (blanco, negro y verde) para el mejor contraste de las colonias.
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a partir de57,20€
En Stock.Plazo de entrega estimado 24 - 48 h. |
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They are made purely of PTFE (polytetrafluoroethylene) and are therefore permanently hydrophobic.
Unlike other (hydrophilic) filter types, they are not wetted by air humidity, allowing unhindered passage of air at low differential pressures.
PTFE membrane filters have an excellent chemical compatibility, so they are also used for the filtration of… Ver más (+) They are made purely of PTFE (polytetrafluoroethylene) and are therefore permanently hydrophobic.
Unlike other (hydrophilic) filter types, they are not wetted by air humidity, allowing unhindered passage of air at low differential pressures.
PTFE membrane filters have an excellent chemical compatibility, so they are also used for the filtration of aggressive chemicals, and acids, to which other filter types are not resistant.
Due to their hydrophobic characteristics, they must be pre-wetted with ethanol or methanol before the filtration of aqueous media.
The main application of this membrane filter type is air/gas filtration
Features:
Applications:
Naturally hydrophobic
Filtration of strong acids and aggressive solutions
Compatible with strong acids and aggressive solutions
Clarifying corrosive substances, strong acids and alkalis (0.45 µm)
Allowing passage of air even at low differential pressure
Clarification of samples and mobile phases of HPLC and GC (0.45 µm)
Sterilisation by at 121 ºC or 134ºC or by ethylene oxide
Sterilisation of air and gases (0.2 µm)
Extractables with water not detected
Venting applications
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a partir de102,67€
Bajo pedido.Entrega estimada habitualmente entre 5 - 7 días laborables. |