Rakhym, A.B., Bekturganova, U.Z., Seilkhanova, G.A. and Csavdari, A. 2020. Chamotte clay sorbent for the extraction of lead and cadmium ions from aqueous solutions. International Journal of Biology and Chemistry. 12, 2 (Jan. 2020), 129–134. DOI:https://doi.org/10.26577/ijbch-2019-i2-17.