Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Circles are widely used standard grade filter papers for routine applications with medium retention and flow rates.

Designed for analysis of non-filterable residue and materials that require a high loading capacity glass microfiber filter. Whatman™ Binder-Free Glass Microfiber Filters, Grade 934-AH Circles are also used in cell harvesting, liquid scintillation, and monitoring pollution.

Strengthened glass filter media by dual lamination with a tough polyester monofilament. Whatman™ HEPA-Vent Filters are ideal for air and gas filtration applications where high retention, dirt-holding capacity and flow rates are required.

Provides an extremely clear and accurate visual pH value using four different segments of dye-impregnated indicator papers. Whatman™ pH Indicator Papers, CF Strips use dyes that are chemically bonded to the paper and cannot be leached into solution.

Ideal for clarifying and removing particles of 20μm and larger, and in applications that do not require a low-ash or ashless paper.

Faster flow, higher retention than cellulose filters

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

Served as the basis filter for EPA standard for the toxicity characteristic leaching procedure. Whatman™ Binder-Free Glass Microfiber Filters GF/F Circles offers an extremely high loading capacity and flow rate.

Combines high loading capacity with fine particle retention. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/A are ideal for gravimetric determination of airborne particulates, stack sampling and absorption methods of air pollution monitoring.

Coarse cellulose fiber papers remove particles >25μm

Recognized standard in laboratories worldwide for isolation of human lymphocytes from peripheral blood. Cytiva™ Ficoll-Paque™ PLUS Media maintains the viability and a representative distribution of B and T lymphocytes.

Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Pure cellulose papers with smooth surfaces are tested to assure uniformity and reproducibility, and offer optimum separation and sample resolution

Combines fine particle retention with good flow rate. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/C are ideal for the collection of suspended solids in potable water, natural and industrial wastes.

Enables the use of highly diluted primary and secondary antibodies without reducing sensitivity.  Cytiva Lifescience™ Amersham™ ECL™ Prime Western Blotting Detection Reagent produces high signal intensity and sensitivity.

Sera-Xtracta Virus/Pathogen Kit for high-throughput total nucleic acid (DNA/RNA) isolation from bacteria and viruses including Adenovirus (Type 14), Influenza A (H3N2) and COVID-19.

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.

Use for desalting and buffer exchange, as well as removal of low-molecular weight compounds. Cytiva Life Sciences™ Disposable PD-10 Desalting Columns provide fast, high-recovery.

Processes three to seven times more sample volume than filters without prefilter. Whatman™ GD/X 934-AH Syringe Filters are specifically designed for filtration of viscous or otherwise hard-to-filter samples with high solids content.

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.

Purifies aqueous and organic solutions. Whatman™ Puradisc 25mm Syringe Filters have polypropylene housings with female luer lock inlet and male luer outlet.

Use for one-step, non-denaturing sample concentration in a single tube for minimal sample handling and reduced sample loss. Cytiva Life Vivaspin™ 20 Sample Concentrators cater to scientists working with sample volumes ranging from 100 μl to 20 ml, with a range of MWCO values from Mr 3 000 to 100 000.

Retains and absorbs more than Grade 1 filters, with a corresponding increase in filtration time. Whatman™ Qualitative Filter Paper: Grade 2 Circles are used for monitoring specific contaminants in the atmosphere and in soil testing.

Designed to collect, transfer, and drop both sample and weighing boat into the acid solution during a Kjeldahl analysis without influencing analytical results. Whatman™ Kjeldahl Weighing Boats are excellent for both weighing and quantitative sample transfer.

For research use only

Manufactured from high-quality alpha cellulose cotton linter for high-performance use in automated Soxhlet extractor systems. Whatman™ Cellulose Soxhlet Extraction Thimbles are intended for applications including use in air and waste gas analysis.

Processes three to seven times more sample volume than filters without prefilter. Whatman™ GD/X Nylon Syringe Filters are specifically designed for filtration of viscous or otherwise hard-to-filter samples with high solids content.

Flexible and durable for easier handling.   Cytiva Nylon Membranes are naturally hydrophilic, eliminating need for wetting agents and prewetting when filtering aqueous solutions.

Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.

For routine, noncritical laboratory filtration applications such as general chemistry, pharmacology, emulsions, petroleum testing, soaps and detergents