LabExact
Grade A-83 Nano-Scale Glass Fiber Filter, 0.5µm, 37mm, Binderless Borosilicate, 100/Pk SKU: LE-A83-3700

Featuring nano-scale borosilicate glass microfiber technology delivering exceptional particle retention with 0.5µm precision for demanding analytical applications. With >85% of the fiber content between 300nm-1000nm, this material represents one of the highest surface area binderless glass microfiber products on the market today. Chemically inert, pure binderless borosilicate glass construction with no sizing additives or surfactants maximizes loading capacity while maintaining precise microfiltration membrane characteristics.

Key Glass Microfiber Membrane Characteristics

Exceptional loading capacity >20x that of equivalent porosity MCE or CN membranes with >15x faster flow rates
Back pressure nearly non-existent compared to surface membranes, reducing operator fatigue and increasing safety
Low background noise in LC/GC/MS applications with very low extractables in presence of aggressive solvents
Smooth glass fiber sheath enables tight consolidation into highly retentive filter matrix
Hydrophobic surface chemistry providing broad solvent compatibility and moisture resistance

Key Construction Characteristics

Binderless borosilicate construction eliminates organic contamination and maintains analytical purity
37mm diameter accommodates standard filter holders and manifold vacuum filtration systems
Superior tensile strength characteristics (ASTM D828)¹ ensure handling integrity during installation and operation
Temperature stability to 500°C exceeds polymeric membrane limitations for high-temperature applications
Chemical stability in presence of all acids except hydrofluoric acid maximizes analytical versatility

Grade A-83 filters achieve outstanding flow rates and loading capacity optimized for HPLC sample preparation, particularly with heavily solids-laden samples requiring extensive clarification. The nano-scale fiber architecture delivers membrane-like retention precision combined with depth filter loading advantages, accelerating your analytical workflows while maintaining exceptional reproducibility. Independent laboratory verification using advanced fiber analysis and SEM quantification validates the nano-scale fiber claims, providing confidence for your critical analytical applications requiring both high capacity and precise particle retention.

¹ ASTM D828 Standard Test Method for Tensile Properties of Paper and Paperboard: https://www.astm.org/Standards/D828.htm