摘要
分别采用离子选择电极法、阳极溶出伏安法和荧光猝灭法测定河水中有机配位体与金属铜离子的条件络合稳定常数与络合容量 .条件络合稳定常数lgk测定结果在不同实验条件下有数量级上的差别 .离子选择电极法的测定值为 2 2 9～ 6 4 7;阳极溶出伏安法的测定值为 2 61～ 6 91 ;荧光猝灭法的测定值为 3 5 2～ 4 71 .随 pH值的增加而增加 。
Condition stabilization constants of complexation between naturally occurring organic ligand in river water and copper were measured lg k and compared by using ISE, ASV and FQ methods. The measured lg k results were 2 29～6 47 by ISE, 2 61～6 91 by ASV, and 3 52～4 71 by FQ, respectively. The constants went up with the raise of pH, the decrease of copper content, and the increase of ligand concentration.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2002年第1期119-122,共4页
Environmental Science
基金
博士点基金资助项目 (980 0 0 140 )
