LabExact
Grade CFP42 Cellulose Filter Paper, Quantitative Ashless, 2.5µm, 42mm, Hydrophilic, 100/Pk SKU: LE-CFP42-042

Featuring quantitative ashless cellulose technology delivering exceptional retention performance for gravimetric analysis applications requiring precise capture of very fine precipitates. This media demonstrates an extremely high retention rate for a cellulose filter media with retention of approximately 2.5 µm particles, providing superior analytical accuracy for demanding laboratory procedures. These very high quality filter papers are manufactured from refined pulp with specialized acid washing processes that ensure minimal interference in quantitative determinations and spectroscopic analyses.

Key Cellulose Membrane Characteristics

Extremely low ash content of <0.01% eliminates contamination sources during high-temperature ashing procedures
Quantitative grade construction provides reproducible results in gravimetric analysis of fine precipitates and trace element separations
Hydrophilic surface chemistry ensures rapid wetting and consistent flow characteristics in aqueous sample processing
Uniquely high retention rate makes it ideal for any gravimetric analysis of very fine precipitates requiring maximum capture efficiency
Primarily used in gravimetric analysis procedures and perform separations by entrapping particulate within the random matrix of cellulose fibers

Key Construction Characteristics

Standard 42mm diameter accommodates conventional filter funnel configurations and laboratory glassware systems
Thickness 0.170mm provides optimal balance between flow rate and mechanical strength during filtration cycles
Acid-washed manufacturing process removes metallic impurities that could interfere with trace analysis determinations
Compatible with standard environmental test procedures such as soil sample analysis & the collection of trace elements and radionuclides in air samples
Nonsterile presentation suitable for routine analytical work where sterility is not required

LE-CFP42-042 filters maximize your analytical precision with validated performance in environmental testing, pharmaceutical analysis, and quality control applications. Outstanding chemical purity accelerates sample preparation workflows while maintaining the stringent accuracy requirements of gravimetric procedures. This media family is also widely used in methods to prepare samples for further testing using many types of instrumentation, transforming these filters into essential components for spectrophotometry, atomic absorption, and other instrumental analysis methods requiring contamination-free sample preparation protocols.