%0 Journal Article %T The effect of production parameters of crab and shrimp based chitosan on the adsorption of aluminum and lead %A Özden ÖZYALÇIN, Z. %A KIPÇAK, A.S. %J Sigma Journal of Engineering and Natural Sciences %D 2023 %V 41 %P 938-946 %R 10.14744/sigma.2022.00046