%0 Journal Article %T Modified multiwall carbon nanotubes supported on graphite as a suitable solid nano-sorbent for selective separation and preconcentration of trace amounts of cadmium and lead ions %A علی اصغر انصافی %A Mojtaba Jokar, %A مهران غیاثی %J Journal of the Iranian Chemical Society %@ 1735-207X %D 2015