Carta da filtro

Supplier: VWR Collection

These highly pure filter paper grades are produced from cellulose fibers with an alpha-cellulose content of nearly 100%, in accordance with precise quality standards. The ash content is approximately 0.06%.

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

Carta da filtro idrofobica utilizzata per la separazione di soluzioni acquose da soluzioni organiche.

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: Whatman products (Cytiva)

Whatman chromatography papers are widely used across the world, reflecting their purity, high quality and consistency. They are made from specially selected cotton cellulose and rigorously quality controlled to ensure uniformity within the grade.

Supplier: Whatman products (Cytiva)

These ion exchange papers combine cellulose and large pore silica gel for separations in which both partition and adsorption are important, including the separation of phospholipids, steroids, phenols and dyes.

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: Whatman products (Cytiva)

Whatman Grade 589/2 filters from Cytiva are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification.

Supplier: Whatman products (Cytiva)

Whatman Grade 589/3 ashless filter paper from Cytiva is particularly useful in capturing very fine particulate samples such as insoluble molecules in fats or oils or supporting ash free dry mass.

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)

Kieselguhr paper with a medium to slow flow rate. Additional adsorption effect, e.g., for the separation of very fine semi-colloidal turbidity, for clarifying milk serum, starch solutions, soil suspensions or sugar-containing solutions prior to polarimetry or refractometry.

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.

Supplier: Whatman products (Cytiva)

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

Supplier: Whatman products (Cytiva)

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. A standard grade filter paper for fine precipitates.

Supplier: Whatman products (Cytiva)

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. A standard grade filter paper for 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).