Grade C Glass Fiber Filter Paper 1.2um, 47mm, Nonsterile, 100/Pk SKU: EF19041

Glass Fiber (GF) Filter Paper - EF19041

Clarifying biological fluids and cell culture harvests requires depth filtration capacity that cellulose papers and surface-capture membranes cannot match. Chemically inert borosilicate glass resists degradation across the full pH range, maintaining fiber integrity through acid and alkaline sample matrices. With this in mind, lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Basis weight of 55g/m² indicates the fiber mass per unit area that controls retention, flow rate, and mechanical strength.
• Rated at 1.2um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.
• Borosilicate glass microfiber depth structure provides high particle loading capacity with flow rates significantly faster than cellulose papers of equivalent retention.
• Hydrophilic glass fiber wets spontaneously on contact with aqueous solutions, eliminating pre-wetting steps required by hydrophobic filter media.
• Nominal retention ratings defined by fiber diameter and packing density provide consistent particle capture across production lots.

If your environmental monitoring program depends on sample comparability to determine trends, the production consistency of this filter paper protects your data validity. For this purpose, thermal stability exceeding 500 degrees C supports the ignition step your gravimetric method requires without introducing filter decomposition artifacts. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

Capacity

350uL

Diameter

47mm

Folded/ Fluted/ Pleated

No

Grade

C

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

55g/m²

Pack Count

100

Particle Retention

1.2um

Pore Size (µm)

1.2

Sterility

Nonsterile

Weight

0.23

Wettability

Hydrophobic

• Gravimetric Air Monitoring - Thermal stability supports ignition-based mass determination of collected airborne particulate samples.
• Protein Precipitation - Captures precipitated proteins from biological fluids for downstream immunoassay and biochemical characterization.
• Turbid Sample Processing - High loading capacity filters heavily particulate environmental and industrial samples without premature clogging.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.
• Biological Clarification - Clears cell culture harvests and biological lysates of particulate debris before chromatographic purification.
• Chlorophyll Extraction - Concentrates algal cells from water column samples for chlorophyll measurement in aquatic quality assessment.