The content of several micro-elements,such as zinc(Zn),iron(Fe),chromium(Cr),aluminum(Al),manganese(Mn),copper(Cu),and other macro-elements such as calcium(Ca),magnesium(Mg) in Anodonta woodina was determined by ICP-AES and the distributing characteriwstic of micro-elements in the soft tissue analyzed.The results indicate that(1) In all the tissues,the range of average detrmination of elements is:w(Ca)>w(Mn)>w(Mg)>w(Fe)>w(Zn)>w(Al)>w(Cr)>w(Cu);(2)The content of elements in diffferent soft tissue is differen...