Circles and sheets. Qualitative. Slightly thicker and more retentive than number 1.

Flowrate: Retention: Wet strength: Thickness: Ash:

Medium Medium Low 0.19mm 0.06%

Circles. Qualitative. Fast flowrate. Excellent retention of coarse and gelatinous precipitants. Smooth. Supplied in packs of circles as outlined below.

Flowrate: Retention: Wet strength: Thickness: Ash:

Fast High Low 0.21mm 0.06%

Nitrocellulose membranes with a 0.2 µm pore size, offering excellent sensitivity, resolution and low background for Western blot protocols.

Features & Benefits:

• Low background and excellent signal-to-noise ratios, without the need for stringent washing conditions
• Compatible with a variety of Western blot labeling and detection systems
• Risk of ”blow-through“ reduced by high binding capacity of small proteins (< Mr 20 000)
• Optimized for chemiluminescent and fluorescent detection
• Long shelf life of bound proteins to the transfer membrane

Nitrocellulose membranes with a 0.45 µm pore size for use in Western blot protocols. Excellent sensitivity, resolution, and low background. for a wide range of laboratory applications.

Features & Benefits:

• Low background and excellent signal-to-noise ratios
• Compatible with a variety of labelling and detection systems
• High binding capacity
• Suitable for proteins with a wide range of molecular weights
• Ideal tool for your antibody purification and analysis workflow
• Long shelf life of bound proteins

Glass microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Manufactured without chemical binder from high grade borosilicate glass. (Exception: GF6, GF9). They are suitable for gravity or low suction filtration. Filtration speeds generally very much higher than conventional cellulose papers. Efficient retention of micron size particles. Must be used flat. Ideal for use in flat perforated plate Buchner type funnels (not sintered glass models). Can be used up to 500 °C.
This ultra-fine filter has a 98 % retention efficiency for particles as small as 0.7 µm in liquids. Particle retention to 0.7 µm.

Provides a single disposable, manual pressure filtration system which is fast and easy to use in sample preparation.

• Built-in pre-filter for 'difficult' samples
• Minimal waste

Comprise a graduated, medical grade PP barrel, maximum capacity 12ml with 3cm² filter at the base, luer slip outlet and plunger. Non-sterile

Applications:

• Excellent for gravimetrical analysis
• Especially for aqueous solutions
• Ideally suitable for contamination test

Properties:

• Economical
• Constant weight
• Hydrophilic
• Not sterile
• Can be used up to 125 °C
• Autoclavable up to 121 °C

Whatman chromatography papers are the most widely used papers for chromatography worldwide. This acceptance and usage reflects the purity, high quality and consistency of Whatman papers. These qualities are relied upon by chromatographers and essential to successful reproducible chromatography. Whatman chromatography paper media are made from specially selected cotton cellulose. They are rigorously quality controlled for characteristics important to the chromatographer and to ensure uniformity within the grade.
1 Chr world standard chromatography paper. A smooth surface, 0.18 mm thick with a linear flow rate (water) of 130 mm/30 min. Good resolution for general analytical separations.
3MM Chr widely used as a blotting paper, 3MM Chr is used in both electrophoresis and for general chemistry. A medium thickness paper (0.34 mm) used extensively for general chromatography and electrophoresis. Flow rate is 130 mm/30 min.
3 Chr medium thickness paper (0.34 mm) with a flow rate of 130 mm/30 min. For general applications with medium/heavy solute loadings. Frequently used for separation of inorganic compounds and for electrophoresis.
17 Chr thick (0.92 mm) and highly absorbent paper with a very high flow rate of 190 mm/30 min. Suitable for the heaviest loadings and ideal for preparative paper chromatography and electrophoresis.

Ion exchange paper
SG81: A unique paper (0.27 mm thick) combining cellulose and large pore silica gel. Suitable for separations in which both partition and adsorption are important, including the separation of phospholipids, steroids, phenols and dyes. Flow rate is 110 mm/30 min.

Double-coated, high sensitivity film optimized for use in all blue and green light chemiluminescence systems for Western blot analysis and validated for use with Amersham ECL™ and CDP-Star.

Features & Benefits:

• High sensitivity Western blot membrane to detect low concentrations of nucleic acid and protein targets
• Clear background for excellent contrast and improved band resolution
• Produces publication-quality images
• Easy to read and simple-to-use
• To be processed in automatic processors or manually in tanks and trays using most common X-ray film developers and fixers

PVDF blotting membrane with 0.45 µm pore size, hydrophobic and of high physical strength, for use with standard colorimetric and chemiluminescent detection methods for proteins of < Mr 20 000.

Features & Benefits:

• Protein binding capacity over 200 μg/cm² for easy signal detection.
• High protein retention even after harsh washing steps.
• High protein capture during transfer minimizes sample loss.
• Suitable for stripping and reprobing

Low fluorescent, hydrophobic blotting membrane for protein transfer. Optimized for fluorescence detection in Western blotting applications.

• Protein binding capacity over 200 µg/cm²
• Higher sensitivity due to low background fluorescence
• Compatible with many blocking agents, transfer buffers and total protein blot stains
• Available in the standard precut sizes for laboratory applications

PVDF blotting membrane with 0.2 µm pore size, hydrophobic with high physical strength, for use with standard colorimetric and chemiluminescent detection methods. The small pore size of the membrane minimizes "blow-through" and increases protein binding over a wide range of molecular weights.

Features & Benefits:

• High protein binding capacity for easy signal detection
• High protein retention even after harsh washing steps
• Maximum capture of proteins during transfers minimizes sample loss
• 0.2 μm pore size for higher surface area, resulting in better binding of low molecular weight proteins
• Highly suitable for stripping and reprobing

Hydrophobic Western blotting membrane specifically designed for protein sequencing applications and solid-phase amino acid analysis.

• High protein binding capacity
• Chemical resistance needed for N-terminal sequencing
• High protein retention even after harsh washing steps
• Minimizes "blow-through" and increases protein binding
• Available in popular sizes for laboratory application

Pure nitrocellulose with extreme mechanical stability - gives excellent useability. For protein transfer and DNA/RNA transfer techniques. Optimum signal/background ratio.

Alternative Transfer membranes Optitran®

Nitrocellulose blotting membrane, with 0.2 µm pore size, for excellent sensitivity, resolution, and low background.

Features & Benefits:

• Low auto-fluorescence across a wide range of excitation/emission wavelengths makes the membrane suitable for fluorescence-based immunodetection and multiplexing.
• High binding capacity (173 - 203 µg IgG/cm²) of small proteins (< Mr 20 000) reduces risk of "blow-through"

Nitrocellulose blotting membrane with 0.45 µm pore size, for excellent sensitivity, resolution and low background.

Features & Benefits:

• High binding capacity (162 - 180 µg IgG/cm²)
• Suitable for proteins of a wide range of molecular weights
• 100% pure nitrocellulose membrane for use with all ECL Western blotting systems and protein blotting applications.
• Available in popular precut sizes for laboratory application

Reinforced 0.45 µm protein blotting membrane for multiple reprobings.

Features & Benefits:

• High binding capacity
• Versatile, robust and excellent signal-to-noise ratios
• Optimal for applications when stripping and reprobing is required
• Suitable for proteins of a wide range of molecular weights

The upper side consists of a particularly absorbent filter paper, the lower side is a non-permeable, chemically resistant PE layer. This combination makes Benchkote into a protective paper with a particularly high wet strength for universal use, helping to meet the requirements of Good Laboratory Practice (GLP):

• Completely absorbs escaped liquids
• Prevents spills from reaching the workbench
• Protects against contamination

Applications:

• Surface protection for lab workbenches, trays or chemical cabinets
• Contamination protection, e. g. in isotope or bacteriological labs
• Adsorption of toxic or radioactive substances
• Hygienic protection in animal cages
• Atmospheric regulation in humidity chambers

Alternative Bench protection paper, LabSorb, rolls Alternative Bench protector, Labmat™

The upper side consists of a particularly absorbent filter paper, the lower side is a non-permeable, chemically resistant PE layer. This combination makes Benchkote into a protective paper with a particularly high wet strength for universal use, helping to meet the requirements of Good Laboratory Practice (GLP):

• Completely absorbs escaped liquids
• Prevents spills from reaching the workbench
• Protects against contamination

Applications:

• Surface protection for lab workbenches, trays or chemical cabinets
• Contamination protection, e. g. in isotope or bacteriological labs
• Adsorption of toxic or radioactive substances
• Hygienic protection in animal cages
• Atmospheric regulation in humidity chambers

Alternative Bench protection paper, LabSorb, rolls Alternative Bench protector, Labmat™

The upper side consists of a particularly absorbent filter paper, the lower side is a non-permeable, chemically resistant PE layer. This combination makes Benchkote into a protective paper with a particularly high wet strength for universal use, helping to meet the requirements of Good Laboratory Practice (GLP):

• Completely absorbs escaped liquids
• Prevents spills from reaching the workbench
• Protects against contamination

Applications:

• Surface protection for lab workbenches, trays or chemical cabinets
• Contamination protection, e. g. in isotope or bacteriological labs
• Adsorption of toxic or radioactive substances
• Hygienic protection in animal cages
• Atmospheric regulation in humidity chambers

Alternative Bench protection paper, LabSorb, rolls Alternative Bench protector, Labmat™ Alternative Benchkote surface protector®, Block à 50 sheets Alternative Benchkote surface protector®, rolls

Manufactured in pure cellulose according to DIN 12449.

Alternative Filter paper, qualitative, type MN 615, circles Alternative Extraction thimbles, Cellulose Alternative Extraction Thimbles, cellulose

Chromatography Paper 1 CHR
The standard chromatography paper. Good resolution for general analytical separations. Pure cellulose. Thickness 0.18mm. Capillary rise (water) 130mm / 30 min.

Chromatography Paper 3MM CHR
Used in electophoresis, in general chemistry and as blotting paper. Pure cellulose. Thickness 0.34mm.
Capillary rise (water) 130mm / 30 min.

Divided into 12 bands, each of 15mm wide, for parallel separation of 12 samples.

For use in pressure lines or vacuum pump exhausts. High-purity polypropylene housing with nozzle for connection to 12mm i.d. tubing. Contains highly pure activated charcoal granules and a folded HEPA filter at the base of the unit that retains 99.97% of all particles <0.3µm.

Laminated hydrophobic glass microfibre filter. Ideal for the sterilisation of large volumes of air at low pressure. Available in two sizes, depending on the volume of air or gas to be filtered. Non-sterile, separately available. Autoclavable.

• Maximum operating pressure 4.1 bar
• Wide range of chemical compatibility
• High loading capacity and high through-put filtration media
• 99.97% of particles of 0.3µm or larger are retained
• Autoclavable at up to 132 °C for one hour
• Connectors: stepped barb (SB) and female national pipe thread (FNPT)