Ihre Suche nach: Filterpapiere
Made of pure cellulose treated with hydrochloric and hydrofluoric acid, filter papers are used for straining with good retention and flow rates. These cellulose filters create a semi-permeable barrier perpendicular to a liquid or airflow in order to separate fine substances from liquids or air. Different grades of filter paper are available for performing various laboratory applications including routine lab work, ranging from coarse to fine filtration of particulates. VWR offers a wide range of qualitative and quantitative filter papers with varying pore size, particle retention, flow rate and filtration times.
Qualitative filter papers, grade 202, Whatman™
Supplier: Whatman products (Cytiva)
A general qualitative filter with creped surface. Faster than grade 201 and retains large crystalline coarse particles. Widely used in industrial laboratories and students laboratories for routine filtration.
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Qualitative filter papers, standard grades, grade 597 Optima, Whatman™
Supplier: Whatman products (Cytiva)
Standard Whatman grade filter paper for a variety of routine applications in food and beverage industries. Well-suited for determination of fat content in food or removal of carbon dioxide and turbidity from beverages such as beer.
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Qualitative filter papers, grade 802, Whatman™
Supplier: Whatman products (Cytiva)
A prepleated filter for use with a conical filter funnel, offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates.
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Grade 520 bII filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A thick paper with high wet strength offering a very high flow rate.
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Application specific filter papers, grade 512 ½, Whatman™
Supplier: Whatman products (Cytiva)
Low phosphate cellulose papers approximately 1,5 ppm phosphate, for the filtration of calcium lactate extracts from soil samples for the determination of K and P according to Egnér, Riehm and Lederle.
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Application specific filter papers, grade 1450CV, Whatman™
Supplier: Whatman products (Cytiva)
Cellulose filter paper for identification of undissolved dyes in the textile industry.
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Grade 0858 ½ qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
Grained, with medium fast flow rate and medium retention. A universal filter paper, used for the filtration of extracts, oils, beer, syrups etc. Also applied in filter presses or for the aspiration of liquids.
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Grade 4V qualitative filter papers, fluted, Whatman™
Supplier: Whatman products (Cytiva)
Whatman Grade 4V filter paper is well suited for qualitative analysis or general filtration of coarse particles. The fluted filter design increases filtration speed, flow rate, and loading capacity.
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Application specific filter papers, grade 72, Whatman™
Supplier: Whatman products (Cytiva)
Grade 72 activated carbon air filter paper is designed for air pollution monitoring of radioactive iodine in medical and nuclear installations.
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Qualitative filter papers, technical, smooth, grade 3 S/h
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
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Grade 2294 filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A very thick filter card with high wet strength. Offers very high flow rate and retains medium to coarse particles.
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Chromatographiepapiere
Supplier: Ahlstrom-Munksjö
Ahlstrom-Munksjö bietet eine ganze Reihe qualitativ hochwertiger Baumwollpapiere mit hohem Saugvermögen an – ideal für chromatographische Analysen und Blotting-Verfahren mit Gel (Southern, Northern und Western Blots). Ahlstrom-Munksjö stellt sowohl in Europa als auch in den USA saugfähige Papiere aus Baumwolllinters höchster Reinheit her. Diese Medien enthalten keinerlei Zusätze, sodass eine Kontamination während der Transferschritte verhindert wird.
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Cone folded filter papers, Whatman™
Supplier: Whatman products (Cytiva)
Cone folded filter paper saves valuable time when undertaking repetitive or multiple analyses.
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Grade 0905 filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A creped paper for coarse particles, offers a very high filtration speed.
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Grade 0860 ½ qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
Comparable to Grade 0858 but with a smooth surface, slightly thinner and faster.
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Grade 0903 filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
Thin filter paper with smooth surface. Offers medium to slow flow rate and good retention for small particles.
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Qualitative filter papers, technical, smooth, grade C 140
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
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Grade 595 ½ qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
A prepleated filter used for many routine analytical applications in different industries (e.g., particle separation from food extracts or filtration of solids from digested environmental samples, e.g., for ICP/AAS analysis).
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Qualitatives Filterpapier, Standardsorten, Sorte 6, Whatman™
Supplier: Whatman products (Cytiva)
Ein Filter der Standardsorte zur Analyse von Kesselwasser.
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Keimprüfpapier
Supplier: Whatman products (Cytiva)
Owing to their extremely high purity our seed testing papers provide reliable and reproducible results. The papers are made from pure cellulose without any additives and do not contain any substances that could influence the growth of the seeds. The constant water absorption of the papers ensures the continuous provision of the required amount of water.
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Qualitative filter papers, Grade 226, Whatman™
Supplier: Whatman products (Cytiva)
A general qualitative filter with creped surface. Widely used in industrial or student laboratories for routine filtration.
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Quantitative filter papers, pyramid folded, Whatman™
Supplier: Whatman products (Cytiva)
Easily fits into conical funnels.
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Phasentrennpapier, Sorte 480
Supplier: Sartorius
This phase separating paper is impregnated with stabilised silicon, thus rendering it hydrophobic and it retains water, but allows solvents to flow through. The flow stops automatically when the entire solvent has passed through, this eliminates the need to use separating funnels.
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Zellulose-Chromatographiepapiere
Supplier: Sartorius
Chromatography papers are not only ideal for chromatography, but also for routine and repetitive separations, routine analysis of proteins in serum (e.g. human albumin) and several absorption applications like those common in the life sciences and diagnostics. They are made of cotton linters with more than 98% alpha-cellulose content and <0,04% ash content.
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Filter papers for wine laboratories
Supplier: Ahlstrom-Munksjö
These filter papers are suitable for use in wine laboratories.
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Qualitative filter papers, technical, smooth, grade 100/N
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
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Qualitative Filter Papers, Munktell
Supplier: Ahlstrom-Munksjö
Ahlstrom-Munksjö’s qualitative grades of filter paper are recommended for use in analytical methods which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance. These filter papers covers a wide range of laboratory applications, as liquids clarification, qualitative analytical separations for precipitates and buffers filtration, and are also used for soil analysis and in food and beverage testing. Wet-strengthened grades contain a reinforcement agent that increases their resistance to rupture when wet, such as in vacuum filtration, and their resistance when filtering acidic solutions.
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Filter papers for soil analysis
Supplier: Ahlstrom-Munksjö
These papers are used to determine the presence of trace elements and nutrients in soil samples to optimise plant growth.
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Qualitative filter papers, technical, smooth, grade 6
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
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Seed testing papers, pleated paper
Supplier: Sartorius
These papers satisfy the requirements for the determination of germination capability according to ISTA (International Seed Testing Association) and are ideal for ensuring optimal moisture content for the most diverse types of seeds and germination forms.