Fig. 4
From: The role of intracellular trafficking of CdSe/ZnS QDs on their consequent toxicity profile
a Graph representing the amount of elemental Cd remaining in the cell culture medium for each exposure concentration following 4Â h incubation. b, c Figures showing the number of elemental Cd, relative to the control, detected in the cell culture media at each concentration after 4Â h (solid filled bars) and 24Â h (dotted bars) incubation, which was followed by immediate washing of the cells. Samples were collected and measured with ICP-MS at the different time points. Please note the difference in the y-scale between graphs b and c