【摘要】 在实验室条件下.研究了影响树脂-半透膜囊吸收铜的主要因素,重点探讨了水相铜含量、半透膜孔径、温度以及天然河水中的有机配位体对吸收的影响.结果表明,半透膜囊吸收量与水相游离铜浓度、水温及半透膜孔径的非整数次幂成正比.其中包括EDTA、河水富里酸,以及河水中的各种天然有机物在内的配位体均与铜生成不能被半透膜囊吸收的络合物.研究结果进一步证实了利用半透膜囊对水环境中游离态微量金属进行长期监测的可行性.更多还原

【Abstract】 Various factors affecting the absorption rate of copper into dialysis membrane filled with cation exchange resin were investigated in laboratory. It was found that the absorption rate are positively correlated to copper concentration, temperature and a non-integrated power function of membrane pore-size. All kinds of complex of copper with EDTA, fuIvic acid , or other organic ligands for natural water will not be available to the absorption of the dialysis membrane, indicating that the membrane is able to absorb free metal ion specifically.更多还原