Application Notes

11. Achieve Ultrafiltration, Microfiltration And Macrofiltration With 24-Well Filter Plates 2/17/2021

    Many techniques in Life Science research rely on efficient sample preparation methods. Concentration and purification of samples are key steps in the workflow that can greatly affect the outcome of the experimental results. Pall has increased the range of AcroPrep 24-well filter plates offered to help streamline membrane selection and provide effective solutions for multiple sample preparation needs. This document reports the data generated by ultrafiltration of proteins of known size with AcroPrep 24-well filter plates.

12. Filtration Of Viscous Materials For Microbial QC 2/12/2021

    Membrane filtration is the preferred method for sterility testing. Viscous products, such as oils, creams and ointments can prove difficult to filter. As per USP <71> viscous oils may be diluted as necessary with a suitable sterile diluent such as isopropyl myristate shown not to have antimicrobial activity in the conditions of the test. Sterile isopropyl myristate (IPM), has been shown to have no anti-microbial activity in test conditions. This study investigates the effectiveness of IPM as a diluent by comparing filtration times with unfiltered oils.