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.
| Variation Codes | 1006-090 |
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Whatman
Qualitative Filter Papers – Grade 2: 8µm
Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed).
More absorbent than Grade 1. In addition to general filtration in the 8 μm particle size range, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials.
Also used for monitoring specific contaminants in the atmosphere and in soil testing.
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Whatman
Glass Microfiber Filter with Binders-Grade GF 10 -Inorganic Binder
Grade GF10 Reel 35 mm x 30 m Core 70 mm 1/PK
This filter with extreme mechanical stability and temperature resistant up to 180°C is used
as a weighing aid for infrared weighing and as a roll filter in automatic air filtration units.SKU: n/a -
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
Chromatography Papers-Grade 1 CHR
Whatman chromatography paper media are made from specially selected cotton cellulose.
They are rigorously quality controlled for characteristics important to the chromatographer and to ensure uniformity within
the grade.Features and benefits
• Pure cellulose produced entirely from the highest quality cotton linters
with no additives of any kind
• Manufactured and tested specifically for chromatographic techniques –
this ensures the wicking capability and uniformity of capillary action that
are important in chemical separations
• Also widely used in protein and nucleic acid blottingSKU: n/a
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