K比例H点标准加入光度法同时测定铝和铜  

Simultaneous determination of copper and aluminum by K-ratio H-point standard addition method

作　　者：单瑞峰[1] 张淑芳[1] 孙小银[2] 

机构地区：[1]山东曲阜师范大学化学科学学院,山东曲阜273165 [2]山东曲阜师范大学资源与规划学院,山东曲阜273165

出　　处：《化学工程师》2008年第4期20-22,共3页Chemical Engineer

基　　金："曲阜师范大学科研启动基金"项目资助

摘　　要：在pH值为6.0的六次甲基四胺-HC l缓冲溶液中,Cu2+和A l3+可分别与铬天青S、溴代十六烷基吡啶形成绿色三元络合物。研究了两种络和物的形成条件,并优选出试验条件,提出了用K比例H点标准加入法同时测定Cu2+和A l3+的新方法,该方法用于水样中Cu2+和A l3+的同时测定,取得了满意的结果。A method called＂ K- ratio H- point standard addition method＂ was proposed for the simultaneous determination of copper and aluminum , based on the reaction of Cu^2＋ or Al^3＋ forming green ternary complex with CAS and CPB in the （ CH2 ） 6N4 - HCl buffer solution at pH 6.0. The formation conditions of ternary complex were studied and the experiment conditions were optimized. This method has been applied to determination of copper and aiuminum in surrounding water with satisfactory results.

关 键 词：K比例H点标准加入法 铜 铝 同时测定 

分 类 号：O657.3[理学—分析化学]