Fig. 2From: Particulates formed in dialysis fluid: effect of silica in tap waterSEM image and EDS mapping in the final ETRF. SEM image and EDS mapping of the central fiber surface, hollow fiber surface closest to the housing, and internal surface of the housing for the final ETRF with 3 months of use. In EDS mapping (elemental analysis), brown is C, pink is O, blue is Mg, turquois blue is Si. SEM, scanning electron microscopy; EDS, energy-dispersive X-ray spectrometry; ETRF, endotoxin-retentive filtersBack to article page