Hai cercato: Carta da filtro

Supplier: Sartorius

Queste carte da filtro sono ottenute da pasta di legno raffinata e linter di cotone con una percentuale di alfa-cellulosa superiore al 95%. Il contenuto di ceneri è circa <0,1%. Sono utilizzabili essenzialmente per le analisi qualitative. Sartorius offre due tipi di carta da filtro per analisi qualitativa: con resistenza normale e con resistenza maggiorata al bagnato, ideale per la filtrazione sotto vuoto o a pressione.

Supplier: VWR Collection

424: Filtrazione di solfuro di piombo, solfuro ferroso, solfuro di argento, carbonato alcalino, cromato di piombo, arsenico, antimonio, cadmio e alimenti. Determinazione del contenuto di sabbia nei prodotti caseari. Determinazione del grado di biancore nelle paste utilizzate nelle cartiere.

Supplier: VWR Collection

Grado 402 e 302: Grado generico per attività qualitative. Adatto per la maggior parte dei solfuri. Determinazione del contenuto totale di grassi nei prodotti caseari.
Grado 403 e 313: Per farmaci, prodotti farmaceutici, liquori, tinture, cromatografia e filtrazione esente da proteine nei laboratori clinici.

Supplier: Whatman products (Cytiva)

These white cotton linter cellulose filters are ideal for routine investigations of foreign substances in a variety of sample types.

Supplier: Whatman products (Cytiva)

These filter papers can be used for the absorption of culture media, as a blotting paper, for electrophoresis and amino acid chromatography.

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 general qualitative filter with creped surface. Widely used in industrial laboratories and students laboratories for routine filtration.

Supplier: Whatman products (Cytiva)

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

Supplier: Whatman products (Cytiva)

Cytiva's Whatman Grade 542 filters are acid hardened to allow high retention of fine precipitates in applications such as metal determinations and hydroxide collection.

Supplier: Whatman products (Cytiva)

Carta da filtro per analisi qualitative, Whatman™, Grade F319-04, 44 mm

Supplier: Whatman products (Cytiva)

Carta da filtro rapida con elevata resistenza al bagnato. La superficie estremamente liscia consente di raschiare o lavare via il precipitato in modo semplice.

Supplier: VWR Collection

Low nitrogen content filters for determination of nitrogen content in steel and iron samples dissolved in acid. Filtration of fine precipitates to dissolve according Kjeldahl method.

Supplier: Sartorius

Queste carte da filtro sono ottenute da pasta di legno raffinata e linter di cotone con una percentuale di alfa-cellulosa superiore al 98%. Sono garantite esenti da acidi residui e hanno un contenuto di ceneri estremamente basso. Pertanto, questi filtri sono praticamente privi di ceneri. Tutte le carte da filtro Sartorius prive di ceneri si caratterizzano per un'elevata resistenza al bagnato e un'elevata purezza e sono quindi particolarmente adatte per analisi quantitative, imbuti di Büchner, filtrazione a pressione o sotto vuoto.

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)

These highly glazed filter papers made from high quality cotton linters support vacuum filtration in Büchner funnels or Hirsch funnels and enable strong retention of very fine crystalline precipitates.

Supplier: Whatman products (Cytiva)

Filtro con superficie crespata per analisi quotidiane meno critiche. Ampiamente utilizzato per analizzare il saccarosio nello zucchero di canna e in laboratori farmaceutici per procedure di filtrazione quotidiane.

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: 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 40 high-purity filters from Cytiva's business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.

Supplier: Whatman products (Cytiva)

Cytiva's Whatman Grade 541 acid hardened cellulose filter paper features high wet-strength, high chemical resistance, and a large nominal particle retention for fast analytical filtration.

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)

With less than 0,01% ash, Cytiva's Whatman Grade 589/1 filter papers can be used for the Blaine test in the cement industry and as an ash content test filter for foodstuffs.

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 clarifying filter excellent for cloudy suspensions and for water and soil analysis.

Supplier: Whatman products (Cytiva)

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

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)

A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.

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: 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%.