This work indicates that washing of lettuce preferentially removed dissolved Cu over Cu-NPs, and that the amount of residual Cu-NPs remaining is low when applied at the recommended rates for Kocide 3000.doi:10.1007/s11051-019-4620-4Stephanie Laughton...
Single particle ICP-MS was used to investigate the persistence of three forms of Cu-NPs following foliar application to live lettuce (Lactuca sativa): CuO NP, Cu(OH)(2) NP, and Kocide 3000 (R). A methanol-based digestion method was used to minimize Cu-NP dissolution during extraction ...