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Vous avez recherché : Papiers filtre

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.

Qualitative filter papers, grades MN 616 and 616 1/4, circles and folded filters

Qualitative filter papers, grades MN 616 and 616 1/4, circles and folded filters

Supplier: MACHEREY-NAGEL

MN 616 is a filter paper with medium retention and flow rate. This filter paper covers a wide range of filtration applications.

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Qualitative filter papers, grades MN 619 de and 619 de 1/4, circles and folded filters

Qualitative filter papers, grades MN 619 de and 619 de 1/4, circles and folded filters

Supplier: MACHEREY-NAGEL

MN 619 de is an extra dense filter paper for excellent clarification of cloudy suspensions. Maximum retention capacity in qualitative range for fine particle filtration e.g. in chemical analysis.

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Hardened quantitative filter papers, ashless wet-strengthened grades, MN 1640

Hardened quantitative filter papers, ashless wet-strengthened grades, MN 1640

Supplier: MACHEREY-NAGEL

These wet strengthened hard smooth filter papers are made of refined pulp and linters and have a low ash content. They are often used for quantitative routine procedures and for analytical gravimetric applications.

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Filter paper, folded, Assistent®

Filter paper, folded, Assistent®

Supplier: GLASWARENFABRIK KARL HECHT

Smooth and medium fast filter papers, suitable for the analysis of fats (due to low ether-soluble residue).

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Filter papers, medium fast and fast

Filter papers, medium fast and fast

Supplier: GLASWARENFABRIK KARL HECHT

Folded filter papers are suitable for the analysis of fats (due to low ether-soluble residue).

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Phase separating paper

Phase separating paper

Supplier: MACHEREY-NAGEL

These papers are made hydrophobic (impermeable to water) by impregnation with a silicone. With the aid of these filters, water can be separated from water-immiscible organic solvents in an elegant manner, by means of a simple filtration.

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Papiers filtre quantitatifs sans cendre

Papiers filtre quantitatifs sans cendre

Supplier: PRAT DUMAS

Les papiers sans cendre sont fabriqués à base de cellulose de coton très purs. Ils sont purifiés à l’acide pour réduire au maximum la quantité de matière minérale comme les oxydes de silicium, magnésium ou aluminium. Les résidus du papier après calcination sont réduits à des quantités négligeables n'influençant pas les résultats des analyses qualitatives.

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Papier filtre quantitatif durci à faible teneur en cendres

Papier filtre quantitatif durci à faible teneur en cendres

Supplier: PRAT DUMAS

Ces papiers sont fabriqués à partir de cellulose très pure et sont lavés dans des acides. Ils sont conçus pour les analyses quantitatives des applications de routine et sont résistants à l'humidité.

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Papiers-filtres qualitatifs, plissés

Papiers-filtres qualitatifs, plissés

Supplier: PRAT DUMAS

Papier velin supérieur, qualité à texture serrée, pour analyses qualitatives. Recommandé pour les laboratoires de recherches et d'analyses, les centres hospitaliers, les industries agroalimentaires, pharmaceutiques, chimiques. Pour utilisation en entonnoir conique à 60°

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Ion exchange papers

Ion exchange papers

Supplier: MACHEREY-NAGEL

Filter papers with ion exchange resin.

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Filter Papers

Supplier: DELTALAB

Filter papers reams is made from high quality cellulose fibres to ensure a good resistance to humidity and a high absorption capacity.

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Cellulose chromatography papers

Supplier: MACHEREY-NAGEL

Paper chromatography is the chromatographic technique separation due to partition of the analytes between special paper grades and the mobile phase, which penetrates the paper by capillary action ascending, descending and circular techniques are possible.

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Filter papers with or without process indicator, Aesculap®

Supplier: Aesculap

Papier filtre, qualitatif, Aesculap®, With process indicator, 190 mm

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Qualitative filter paper, very fast filtration

Qualitative filter paper, very fast filtration

Supplier: PRAT DUMAS

These filter papers are used for thick and sticky liquids filtration. The paper consisted of long cotton fibers, are thick and very resistant.

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Filter papers, reusable, Aesculap®

Supplier: Aesculap

Reusable filters for 1000 cleaning and sterilisation cycles.

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Qualitative filter papers, wet-strengthened

Qualitative filter papers, wet-strengthened

Supplier: PRAT DUMAS

Grade 106: These vellum papers are designed for qualitative analysis. They are used for general laboratory filtration in universities, schools, hospital, research laboratories, food and pharmaceutical laboratories and for sweets.

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Filter Paper, Glass Fibre, Extra Thick

Supplier: Hach

For filtration of heavily contaminated samples. High particulate-holding capacity makes discs efficient depth filters and allows for filtration of large volumes of solutions.

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Qualitative filter papers, slow filtration

Qualitative filter papers, slow filtration

Supplier: PRAT DUMAS

The filter papers are used for very effective, fine filtration of small particles precipitates.

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Qualitative filter papers, fast filtration

Qualitative filter papers, fast filtration

Supplier: PRAT DUMAS

Filters on creped surface. Frequently used to determine the content of sucrose in cane sugar and in the pharmaceutical laboratories for common filtration. Also used for the industrial filtrations.

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Qualitative filter papers, grade 108

Qualitative filter papers, grade 108

Supplier: PRAT DUMAS

Superior vellum based on pure cellulose. Used for the universal filtrations in laboratory. This quality covers many applications.

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Phase separating filters

Phase separating filters

Supplier: PRAT DUMAS

Hydrophobic paper for the fast separation of aqueous solutions from hydrofuge solvents.

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Chromatography paper

Chromatography paper

Supplier: VARIAN

Chromatography paper is used in thin layer chromatography applications such as evaluating radioisotope purity, QC testing.

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Filter papers for laboratory freeze dryers

Supplier: CHRIST MARTIN

Accessory for freeze dryer, -

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