Vous avez recherché : Papiers filtre
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.
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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Filter papers for healthcare applications, grade 470, Whatman™
Supplier: Whatman products (Cytiva)
Peut être utilisé pour l'absorption des milieux de culture, comme papier de blotting, pour l'électrophorèse et la chromatographie d'acides aminés.
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Papier filtre quantitatif durci sans cendres
Supplier: Ahlstrom-Munksjö
Ahlstrom-Munksjö produit une gamme de papiers filtre lavés à l'acide, extrêmement purs et conçus pour être utilisés dans l'analyse et l'analyse gravimétrique. Les grades quantitatifs sont fabriqués à base de linters de coton de haute qualité en utilisant de l'eau désionisée ultra-pure et sont ensuite traités avec de l'acide dilué afin de supprimer toute impureté organique et non organique subsistante. Tous les grades quantitatifs sont produits dans un environnement strictement contrôlé qui assure une grande uniformité et une grande pureté d'un filtre à l'autre.
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Quantitative filter papers, pyramid folded, Whatman™
Supplier: Whatman products (Cytiva)
Easily fits into conical funnels.
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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 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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VWR®, Papier séparateur de phases, grade 511
Supplier: VWR Collection
Papier filtre hydrophobe utilisé pour la séparation entre les solutions aqueuses et les solutions organiques.
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Papiers filtre en terre de diatomées, grade 470
Supplier: Sartorius
Grade 470 papers are made of cellulose and diatomaceous earth and offer a much better separating capability than pure cellulose papers at the same rate of filtration.
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Papier séparateur de phases, grade 1PS, Whatman™
Supplier: Whatman products (Cytiva)
1PS phase-separating paper is a hydrophobic filter for routine solvent extraction. Within seconds it retains aqueous phases, while solvent phases flow through.
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Quantitative filter papers, hardened ashless grades, grade 391
Supplier: Ahlstrom-Munksjö
These quantitative ashless hardened filter papers are recommended for use where a high purity is required for quantitative analysis.
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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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High purity qualitative filter paper
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 3 w
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, 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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Filter papers for wine laboratories
Supplier: Ahlstrom-Munksjö
These filter papers are suitable for use in wine laboratories.
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Ashless quantitative filter papers
Supplier: Ahlstrom-Munksjö
Ahlstrom-Munksjö manufactures a series of extremely high purity, acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra-pure, deionised water and are further treated with dilute acid to remove any remaining organic and inorganic impurities. All quantitative grades are manufactured in a strictly controlled environment that ensures high uniformity and high purity from filter to filter.
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Filter paper for special applications
Supplier: Ahlstrom-Munksjö
These filter papers for suitable for special applications.
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Seed testing papers, Munktell
Supplier: Ahlstrom-Munksjö
Seed Testing Papers are widely used by seed testing institutes and others for germination capacity testing and for health tests e.g. Jacobsen (Copenhagen tank), on top of paper and osmosis test.
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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.
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High purity qualitative filter paper
Supplier: Ahlstrom-Munksjö
These 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 cover 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 breweries
Supplier: Ahlstrom-Munksjö
Ahlstrom-Munksjö offers filters for malt analysis and malt filtration according to MEBAK, ASBC and EBC standards.
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Quantitative filter papers, hardened ashless grades, grade 392
Supplier: Ahlstrom-Munksjö
These quantitative ashless hardened filter papers are recommended for use where a high purity is required for quantitative analysis.
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General purpose qualitative filter papers
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. Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications.
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Qualitative filter papers, technical, smooth, grade 3 hw
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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High purity hardened qualitative filter paper
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. High Purity hardened filter papers grades 1288 to 1291 are also produced from cellulose with an alpha content of nearly 100% resulting in an ash content of <0,1%.
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Industrial filter boards, Munktell
Supplier: Ahlstrom-Munksjö
Boards which by their filtration properties are keyed to specific applications as well as to industrial filtration processes.
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Paper boards for filtration and absorption of liquids
Supplier: Sartorius
These paper boards are used for the filtration of cooking and transformer oils, galvanic baths and as base paper for further impregnation with certain reagents. They are made of refined pulp or cotton linters.
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Papiers filtre quantitatifs
Supplier: GERBER FUNKE
Papier filtre, quantitatif
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Adjuvants de filtration sans cendres, Whatman™
Supplier: Whatman products (Cytiva)
Ashless filter aids enhance filtration speed by coagulating precipitates or suspensions to form a thick retentive ‘prefilter’ layer on top of normal filter paper.