Open Access

Fig. 16


Download original image

On the left, O/C and N/C elemental ratio distributions. On the right, barycentre diagram of the C, N, and O elemental proportions of illicit and benign materials, with an indication of the most probable materials ranked by decreasing likelihood with respect to measured data.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.