Gridded Membrane Filters
GentaurFiltr® Mixed Cellulose Ester (MCE) membrane filters and cellulose acetate membrane filters are specifically engineered for high-precision colony counting and sterility testing in microbiological and analytical applications.
Manufactured from a high-performance blend of cellulose nitrate and cellulose acetate, GentaurFiltr® membranes deliver exceptional clarity, reproducibility, and microbial recovery, making them a trusted choice for research laboratories and quality control environments worldwide.
Key Features of GentaurFiltr® MCE Membranes:
✅ Exceptional Microorganism Recovery Rates: Over 90% efficiency, supporting accurate microbial enumeration.
✅ Validated Bacterial Retention: Log Reduction Value (LRV) >7 for 0.2 µm membranes, tested with ATCC 19146 under ASTM bacterial challenge protocols – guaranteeing robust sterility performance.
✅ Microbiology-Optimized Grids: Printed with biocompatible ink that promotes microbial growth for easy and precise colony counting.
✅ High Flow Rate Design: Ensures rapid filtration without compromising retention efficiency.
✅ Ready-to-Use Packaging: Pre-sterilized and QC-verified in 5 traceable manufacturing steps from raw material to final product.
✅ Gentaur Technical Support & Competitive Pricing: Expert advice and economical solutions for all your membrane needs.
Applications:
- Microbial sterility testing and colony enumeration
- Sterilizing-grade filtration of aqueous samples
- Airborne particle monitoring and environmental testing
- Clarification and prefiltration of liquids
- Microbiological analysis in food, pharma, and biotech workflows
Grid Membrane(Individual&Continuous Pack)
Grid Membrane-Specifications
Grid Membrane-Features
- Quality control begins with the QA of raw materials and maintained during and post-membrane casting process through regular sample testing intervals that includes microbial testing and particle counts.
- Gridded lines do not inhibit colony growth.
- All membrane filters comply with ISO 7704.
- MCE membranes is a mixture of cellulose nitrate and cellulose acetate which allows effective retention with high-flow rates and optimal colony growth.
- Each shipment includes COA ( Certificate of Analysis) or Quality Certificate .
Grid Membrane-Quality Control
- Bacterial Challenge: LRV>7（ATCC19146, ATCC14756,ASTM bacterial challenge test )for each lot of 0.2um and 0.45um products.
- Bacterial Endotoxin : < 0.25 EU/mL or < 2.15EU/device (LAL) for each lot of devices.
- Biosafety: Meets USP<88>Biological Reactivity test for Class VI Plastics.
- Recovery of Fecal Coliform: ≥90 %
- Traceable: All QC data is traceable for each lot from raw material to finished product.
- Reliably: Each lot of products are tested for seal and membrane integrity.
- ISO 9001 Quality Standard
Grid Membrane-Comparison of Bacterial recovery Rate against competitors
Grid Membrane-Comparison of Flow Rate against competitors
High Flowrate MCE membrane provides short filtration times for water, beer, wine, juice and other beverages saving time especially for multiple samples
Grid Membrane-Excellent Performance of Grids
