Vous avez recherché : Papiers filtres qualitatifs

Supplier: Sartorius

Ces papiers filtre sont fabriqués en pâte purifiée et linters avec plus de 95% d'alpha-cellulose. La teneur en cendres de ces papiers filtre est d'environ<0,1%. Ils sont principalement utilisés pour des analyses qualitatives. Sartorius propose deux catégories de papiers filtre qualitatifs: résistance standard et résistance accrue à l'humidité, particulièrement adaptées à la filtration sous vide ou sous pression.

Supplier: VWR Collection

Grade 402 and 302: General grade for qualitative tasks. Compatible avec la plupart des sulfures. Détermination de la teneur totale en graisse des produits laitiers.
Grade 403 and 313: Utilisé en laboratoire clinique pour les drogues, produits pharmaceutiques, liqueurs, teintures, pour les filtrages chromatographiques et pour obtenir des filtrats dé-protéinés.

Supplier: Whatman products (Cytiva)

Filtre en cellulose de grade standard utilisé dans les techniques d'analyse qualitative pour la détermination et l'identification de matériaux. Deux fois plus épais que le grade 1. L'épaisseur renforcée améliore sa résistance à l'humidité et rend ce grade parfaitement adapté à une utilisation dans les entonnoirs Büchner. Ce pouvoir hautement absorbant est particulièrement utile lorsque le papier est utilisé comme portoir à échantillons.

Supplier: Whatman products (Cytiva)

A medium fast filter paper used for the filtration of the mash for the determination of the extract in malt and wort and for removing carbon dioxide from beer.

Supplier: Whatman products (Cytiva)

Whatman Grade 1 Qualitative Filter Papers are the most widely used filter paper for routine laboratory applications, qualitative analytical separations, and clarifying liquids. They are the standard grade cellulose filter papers for medium flow rates.

Supplier: Whatman products (Cytiva)

A standard grade filter for boiler water analysis.

Supplier: Whatman products (Cytiva)

These cellulose filters are used in qualitative analytical techniques to determine and identify materials.

Supplier: Whatman products (Cytiva)

Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.

Supplier: Whatman products (Cytiva)

Grade 602EH and 602EH½ Qualitative Filter Papers for very fine precipitates.

Supplier: Whatman products (Cytiva)

A standard grade 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 for iCP/AAs analysis).

Supplier: Whatman products (Cytiva)

Papier filtre rapide offrant une résistance élevée à l'humidité. Il possède une surface très lisse facilitant la récupération du précipité par grattage ou par rinçage.

Supplier: Whatman products (Cytiva)

Papier filtre, qualitatif, Whatman™, Grade F319-04, 44 mm

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.

Supplier: Whatman products (Cytiva)

A dense prepleated filter paper for collecting very small particles and removing fine precipitates.

Supplier: Whatman products (Cytiva)

Acid washed cellulose filter paper with ash content of approximately 0,01%, low magnesium, for the determination of trace elements (Mg, Mn, Co, Cu, Mo, B).

Supplier: Whatman products (Cytiva)

A general purpose creped cellulose filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration.

Supplier: Whatman products (Cytiva)

A standard grade clarifying filter excellent for cloudy suspensions and for water and soil analysis.

Supplier: Whatman products (Cytiva)

Cytiva's Whatman Grade 113V creped filter paper, for use with a conical filter funnel, offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates.

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%. They are used for routine analyses like clarification, determination of substances, but also as discs with a centre hole for technical applications. Grades with a wet burst resistance >30 kPa are referred to as wet-strengthened and are therefore suitable for pressure or vacuum filtration.

Supplier: Whatman products (Cytiva)

Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper. They are useful in qualitative analytical separations when fast flow is required and the collection of fine particles is not critical.

Supplier: Whatman products (Cytiva)

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Supplier: Sartorius

These filter papers are used for routine analyses like clarification, determination of substances, but also as discs with a center hole for technical applications. Grades with a wet burst resistance >30 kPa are referred to as wet-strengthened and are therefore
suitable for pressure or vacuum filtration.

Supplier: Whatman products (Cytiva)

Grade 604½ Qualitative Filter Papers for coarse precipitates. Maintains flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itself.

Supplier: Sartorius

These paper grades are used for analytical purposes that require a low ash content. They are essentially used for qualitative analyses.

Supplier: Whatman products (Cytiva)

A standard grade filter esed in sample preparation, e.g., in the beverage industry for residual sugar determination, acidic spectra, refractometric analysis, and HPLC.

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%.

Supplier: Whatman products (Cytiva)

Coarse filter mat with high wet strength.

Supplier: Whatman products (Cytiva)

These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin.

Supplier: Whatman products (Cytiva)

A thin paper with great wet strength and a very high flow rate. Frequently used in technical applications such as the filtration of viscous liquids and emulsions (e.g., sweetened juices, spirits and syrups, resin solutions, oils, or plant extracts).

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%.