SEM pictures and EDS analysis of a representative countertop containing copper oxide particles. A. A representative picture of a tested countertop impregnated with copper oxide; B. A SEM imaging of the Countertop (white dots indicating copper oxide particles; C. EDS imaging of the Countertop (purple dots indicating the copper oxide); D. cut through SEM imaging of the Countertop (white dots indicating copper oxide particles); and E. corresponding EDS spectra of D, showing a peak corresponding to copper.
Monk et al. BMC Microbiology 2014 14:57 doi:10.1186/1471-2180-14-57