Abstract
Confocal Scanning Laser Microscopy (CSLM) in fluorescence mode was used to characterize microporous membranes. Two microfiltration membranes were investigated: a mixed ester (cellulose nitrate/cellulose acetate) 1.2 μ m-rated membrane and a polycarbonate track-etched membrane with cylindrical pores of 2 μ m diameter. Optical sections of the membranes stained with rhodamine and mounted in glycerol were performed at 1 μ m intervals, from 0 to 10 μ m. CSLM was found useful for microporous membrane characterization, as it gives some insight into bulk membrane morphology.
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