Cellulose filters are used in qualitative analytical techniques to determine and identify materials.
Prepleated qualitative filters are available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
-25%
| Variation Codes | 1006-090 |
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Whatman
Quantitative Filter Papers-Grade 40: 8μm
Grade 40: 8 μm*
The classic general purpose ashless filter paper with medium speed and retention.
Typical applications include gravimetric analysis for numerous components in cements,clays, iron, and steel products; as a primary filter for separating solid matter from aqueous extracts in general soil analysis; quantitative determination of sediments in milk, and as a pure analytical grade clean-up filter for solutions prior to AA
spectrometry.Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere.
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Whatman
Qualitative Filter Papers-Grade 5: 2.5μm
Grade 5: 2.5 μm*
The maximum degree of fine particle filtration in the qualitative range.Capable of retaining the fine precipitates encountered in chemical analysis.
Slow flow rate.
Excellent clarifying filter for cloudy suspensions and for water and soil analysis.
Also available prepleated as Grade 5V.
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Whatman
Glass Microfiber Filters-Binder Free Glass Microfiber Filters-Grade GF/A (1.6 μm)
Grade GF/C: 1.2 μm*
Combines fine particle retention with good flow rate.
The standard filter in many
parts of the world for the collection of suspended solids in potable water and natural
and industrial wastes.Fast and efficient clarification of aqueous liquids containing
low to medium levels of fine particulates.Widely used for cell harvesting, liquid scintillation counting, and binding assays where more loading capacity is required.
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Whatman
Extraction Thimbles-HP Cellulose Extraction Thimbles
Cellulose extraction thimbles are produced from high-quality alpha cellulose cotton
linter and have excellent mechanical strength and retention.
Standard single thickness thimbles have a wall thickness of approximately 1 mm
(10.0 μm nominal particle retention).SKU: n/a
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