购物车 
Whatman 无黏合剂玻璃纤维滤纸 Grade GF/F
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品牌 : Whatman
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产品分类：滤纸
Whatman Grade GF/F binder-free borosilicate glass microfiber fiber is commonly used for biomolecule purification techniques such as DNA purification and protein precipitation as well as landfill leachate toxicity testing.
Stringent particle retention size for biochemical filtering
Applications include:
DNA purification and binding
Filtration for protein purification
Clarifying difficult biochemical solutions and fluids
Landfill leachate toxicity testing
Due to its stringent particle retention size specification and pure borosilicate glass composition, the Whatman Grade GF/F glass microfiber filter was chosen by the US Environmental Protection Agency (EPA) for use in developing the Toxicity Characteristic Leaching Procedure (TCLP) 1311. It remains a prominent component for measuring landfill leachate composition
Stringent 0.6-0.8 µm particle retention specification
Manufactured from pure borosilicate glass
Whatman Grade GF/F binder-free glass microfiber filters are available in a wide range of sizes in circles and sheets.
This pure borosilicate glass fiber filter offers very fine particle retention with high loading capacity and flow rate.
Find the right particle retention rating and thickness for your analysis in the Whatman glass microfiber binder-free range.
Looking for a filter paper, membrane filter, or syringe filter? Let GE help you find the optimal filter for your needs to ensure reliable analysis.
PRODUCT SPECIFICATIONS
| Parameter | Grade GF/F Filter for TCLP Test Use |
|---|---|
| Application | Recommended for DNA binding and purification. Very effective in filtering finely precipitated proteins. Can be used in conjunction with GF/D as a prefilter for the successful clarification of extremely ‘difficult’ biochemical solutions and fluids and nucleic acids. Highly suitable for use in applications involving air filtration and for gravimetric analysis of volatile materials where ignition is involved. |
| Grade | Grade GF/F |
| Diameter ( mm ) | 15 / 21 / 24 / 25 / 37 / 42 / 47 / 55 / 70 / 90 / 110 / 125 / 142 / 150 / 257 / 460*570 |
| Nominal air flow rate | 19 s/100 ml/in² |
| Nominal thickness | 420 |
| Nominal basis weight | 75 g/m² |
| Max recommended temperature | 550 °C |
| Material | Borosilicate glass |
| Binder type | Binder Free |
| Typical Particle Retention in Liquid 1 | 0.7 µm |
| Typical water flow rate 2 | 41 ml/min |
| Format | Circles / Sheets |
1：Particle retention rating at 98% efficiency.
2：Normalised for 9 cm diameter. Measured under gravity for comparative purposes.
2：Normalised for 9 cm diameter. Measured under gravity for comparative purposes.
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