Sartorius Blotting Filters and Filter Papers
Filter papers and blotting membranes are both types of porous sheets used for various purposes in laboratories and other applications. While our filter papers offer excellent separation properties in both quantitative and qualitative grades, our blotting membranes have a high absorbency, making them ideal for protein filtration.
The Sartorius laboratory filtration products are engineered to support you with all your filtration challenges. Benefit from the Sartorius quality: ISO9001 and ISO14001 compliance for exceptional product quality, performance and product uniformity that is critical for your continued success. Filter nearly everything from air, to aqueous, to caustic solvents.
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Blotting
Experience exceptional paper quality, achieve superior blots, and obtain superb results with Sartorius. Choose among our blotting papers and consistent CN membranes for reproducible results
Our meticulously crafted blotting papers are made from high-purity cotton linters, ensuring uniform buffer flow and impeccable blotting outcomes.
- Made of high-purity cotton linters for uniform buffer flow and resulting blots
- No additives to avoid any interference during the transfer
- Supplied in sheets, rolls as well as in customized sizes to save time and avoid any waste
Utilizing pure nitrocellulose, our CN membranes deliver outstanding signal-to-noise ratios, enabling accurate and precise blotting results.
- Excellent signal-to-noise blotting result.
- High binding capacities.
- Lot to lot consistency
Filter Papers
High-grade filter papers are invaluable for routine work in laboratory and industrial applications. Sartorius offers a broad range of filter papers and paper boards for various tasks and helps solve your filtration challenges. Crafted from the finest cellulose fibers, our filter papers exhibit exceptional purity and consistency, ensuring reliable and precise filtration every time. To list some of the key products and features:
- Ash-free Filter papers which have an alpha-cellulose content of > 98 % and are acid-washed to make the papers ashless and achieve highest purity
- Filter papers for qualitative analyses are essentially used for analytical and routine process and can be supplied in sheets, discs, folded and other customized formats
- Filter papers for the absorption of liquids are the best choice for surface protection, blotting chromatography and seed germination.
- Special papers, the diatomaceous earth filter paper and the phase separator paper are being used for clarification and the separation of liquids.
Ordering Information
Best selling Filter and Blotting Papers:
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Features
Sartorius Filters Offer:
The blotting papers are made of high-purity cotton linters for uniform buffer flow and resulting blots. Furthermore, the CN membranes are made of pure nitrocellulose and produce excellent signal-to-noise blotting results
High-grade filter papers are invaluable for routine work in laboratory and industrial applications. Sartorius offers a broad range of filter papers and paper boards for various tasks and helps solve your filtration challenges
Both, the membrane sheets and the blotting papers are known for their superior binding capacity and low brittleness.
Frequently Asked Questions
Blotting papers are primarily used in molecular biology techniques such as Western blotting, Southern blotting, and Northern blotting.
The choice of blotting paper depends on factors such as the type of biomolecules being transferred, the size of the molecules, the desired transfer efficiency, and the specific requirements of the blotting technique
To produce quantitative papers, the high-quality raw materials (cotton linters with 98 % of alpha-cellulose content) are treated to reduce mineral content and therefore get an ignition residue of 0.01 %.
Qualitative papers are also made of high-quality raw materials (refined pulp & linters with 95 % of alpha-cellulose content) but without any reduction of mineral content. Their ignition residue is 0.1 %.
Quantitative and qualitative papers are mostly used in analytics due to their quality.
Qualitative and technical papers can be used in analytics for pre-filtration steps but predominantly cover technical filtration
The choice of blotting paper depends on factors such as the type of biomolecules being transferred, the size of the molecules, the desired transfer efficiency, and the specific requirements of thFilter papers are depth filters made of fibers with an irregular structure. Their depth structure allows retention of different particle sizes not only on the surface of the filter but also in its structure. A filter paper can only be defined by the capacity to retain a certain particle size. As there is no standard of how to define particle retention of a depth filter, the comparison between filters is valid only with filters tested with the same test method.e blotting technique
