Adsorption Studies of Cu (II), Pb (II) and Cr (VI) by Chitosan Unitiol Composite: Adsorption Studies of Cu (II), Pb (II) and Cr (VI) by Chitosan Unitiol Composite. IJBCh 2018, 11 (1), 12-17. https://doi.org/10.26577/ijbch-2018-1-289.