Filter Paper Disc

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Filter Paper Disc
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  • Qualitative filter papers: Made of refined pulp and cotton linters with more than 95% alpha cellulose content. The ash content of these filter papers is < 0.1% and they are essentially used for qualitative analysis. Sartorius offers two categories of qualitative filter paper: those that are wet…

  • Grade GF/F Glass Microfiber Filters, Binder Free

    Cytiva (formerly GE Healthcare Life Sciences)

    …Grade GF/F filter from Cytiva (formerly GE Healthcare Life Sciences) business is manufactured from pure borosilicate glass. GF/F offers very fine particle retention and good loading capacity and flow rate. 0.7 µm nominal particle retention Served as the basis filter for EPA standard…

  • Qualitative filter grades are used in basic qualitative analysis and are available as filter discs, sheets and folded filters. These papers maintain consistently high quality due to tightly controlled manufacturer parameters which ensure dependable sample filtration results, lot after lot year after…

  • …of different antibiotics and visualize bacterial sensitivity and resistance to the supplied antibiotics. This method involves the use of filter paper discs impregnated with a specified concentration of antibiotics on the surface of an agar plate containing microbial cells.    This…

  • GF/B Borosilicate Glass Microfiber Filter Discs

    Cytiva (formerly GE Healthcare Life Sciences)

    …particles to 1.0 µm Extremely high flow rate; filtration takes place both vertically and laterally through the filters High loading capacity, which continues to filter efficiently for a greater extended period Highly resistant to chemical attack; absence of binders ensures that…

  • PTFE Membrane Disc Filters

    Pall Life Sciences

    …hostile testing environments or acid aerosol monitoring Teflo membrane offers unique PMP support ring for PM 10 and PM 2.5 dichotomous and other air sampling techniques Ultimate in chemical compatibility for filtering harsh chemicals and HPLC mobile phases that destroy other membrane materials

  • Ahlstrom’s qualitative grades of filter paper are, by definition, 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…

  • Crosstex offers a full line of Spore Strips for use in monitoring sterilization processes. Spore Strips consist of inoculated filter paper, 6 mm x 30 mm, packaged in glassine peel pouches or envelopes. The glassine packaging provides protection from environmental contaminants during transport post…

  • GF/A Borosilicate Glass Microfiber Filters

    Cytiva (formerly GE Healthcare Life Sciences)

    …particles to 1.6 µm Extremely high flow rate; filtration takes place both vertically and laterally through the filters High loading capacity, which continues to filter efficiently for a greater extended period Highly resistant to chemical attack; absence of binders ensures that…

  • paper Offered in nine sizes and three porosities Pore sizes 40 to 60 µm = C, 10 to 15 µm = M and 4 to 6 µm = F With square-cut, fire-polished rim These funnels are especially useful where filter paper would be attacked by the material being filtered. The disc

  • Filter material and discs (paper, PTFE, and polypropylene).

  • Buchner Filter Funnels

    Wilmad-LabGlass - SP Scienceware

    WUsed in applications where filter paper would be attacked by the material being filtered, these borosilicate glass Buchner filter funnels with sealed-in fritted glass discs are available in Coarse(C), Medium(M), or Fine(F) porosities.

  • …3500-PB Lead Detection: Dithizone Method Preparation of the dithizone includes filtering through a paper, such as Grade 94. During the sample digestion the sample is filtered through a leadfree filter paper, such as Grade 55. Construction Laboratory Applications: ASTM D2435-11…

  • …Laboratory Membrane Filter Excellent chemical compatibility with esters, bases, and alcohols Naturally hydrophilic Available in 0.2 and 0.45 µm pore sizes, in diameters ranging from 13 to 142 mm HPLC certified. Provides assurance that the filter will not add artifacts…

  • GF/D Borosilicate Glass Microfiber Filters

    Cytiva (formerly GE Healthcare Life Sciences)

    …capacity Particle retention 2.7 µm Extremely high speed; ten times more rapid than the fastest comparable retention cellulose filter paper Withstands temperature to 500°C Designed as a membrane pre-filter, with sizes to fit most holders Used for sample collecting and…

  • …does not depend on an induced or constitutive permease enzyme to enter the cell, therefore reactions are rapid and occur within a 24-hour period even for late lactose fermenters. Packaging: Sterile filter paper discs (50 pcs, diameter 6 mm) impregnated with o-nitrophenyl-β-D-galacto pyranose

  • Filtration apparatus for 75mm OD membranes or filter paper. Ideal for solvent recycling and other filter applications. All threaded apparatus eliminates need for clamps. Course glass fritted disc is interchangable. Gl80 wide mouth bottle with #15 Ace-Safe connector for vacuum connection on side.…

  • …(ethyl hydrocuprein hydrochloride) is inhibitory for pneumococcal growth whereas other streptococci show good growth or a very small zone of inhibition. This test is performed for the diagnosis of pneumococcal infections. Packaging: Sterile filter paper discs (50pcs) impregnated with optochin

  • …A filter paper disc, placed in the centrifuge, is used to collect the extract from the sample. The filter disc is then tested. Grade 901 meets the requirements for the filter rings. Method B is done using a reflux extractor. The reflux extractor consists of two cone type screens. The filter paper

  • These fritted disc funnels are very useful in preparative work, or in making separations where it is necessary to wash the precipitate and redissolve with chemicals, which would attack filter paper. The angle of the funnel body facilitates the removal of precipitates. These funnels are available…

  • Funnel has a sealed-in glass fritted disc of the listed porosity. Useful wherever filter paper or membranes cannot withstand the chemical attack of the filtrate. Constructed with heavy wall stems and the top of the funnel is beaded for additional strength. Not recommended for use where pressure…

  • …outer joint bent perpendicular to flow path; PART B, with seat for fritted disc and 28/15 inner joint; PART C, neoprene gasket used to seal filter paper and prevent leakage around filter; PART D, porosity B fritted disc. Use 7670-18 to clamp 51mm size, 6509-03 for 76mm size, and 6509-05 for the…

  • Funnel Filter Buchner Fritted Medium 2000ml

    DWK Life Sciences (Kimble)

    …funnel is used wherever filter paper and membranes cannot withstand the chemical attack of the filtrate. Funnels are constructed with heavy-walled stems, and top rims are beaded for extra strength With a marking spot With KIMFLOW® fritted disc Manufactured from 33 expansion,…

  • …premature clogging when filtering difficult-to-filter or highly contaminated solutions Extends filter life and reduces final filter changes with high capacity prefilters Eliminates sample contamination. Binder-free borosilicate glass fiber has no added extractables Filters a wide range of…

  • Depth filters with high particle loading capacity. Made of 100% borosilicate. Temperature resistant up to 500 °C. Typically placed directly on top of other membrane filters to act as a prefilter; or may be used to filter solutions directly.

  • …transfection and expression screening. The plastic card holds eight 5mm filter paper discs that were treated with proprietary lysis buffer, cells are lysed upon applied on the card, RNA are released during the card drying. Discs are easily pushed out and relocated to 96 well plate wells with sterile…

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