The two products,cross linded amino starch(CAS)and dithiocarbamate modified starch(DTCS)were efficient to asdorption for copper ion with characteristic of Langmuir and Freundlich isothermal equation.

• 研究了CAS和DTCS吸附铜离子的动力学行为 ；结果表明 ；二者对铜的吸附均符合Freundlich等温式 .