恒电流吸附计时电位法的研究 Ⅱ.铜、铅的微分吸附计时电位法连测  

Investigations on Adsorption Potentiometry Part Ⅱ the Simultaneous Determination of Copper and Lead by Derivative Adsorption Chronopotentiometry

作　　者：张晓丽[1] 王丽增[1] 申大忠[1] 陈子雷[1] 

机构地区：[1]山东大学化学系

出　　处：《分析试验室》1998年第6期32-34,共3页Chinese Journal of Analysis Laboratory

摘　　要：研究了ＮＨ３／ＮＨ４Ｃｌ底液中，铜、铅与水杨基荧光酮（ＳＡＦ）形成的络合物在悬汞电极上的恒电流吸附计时电位溶出行为。讨论了富集时间，溶液ｐＨ值，溶出恒电流大小及铜、铅浓度比值等对ｄｔ／ｄＥ～Ｅ溶出曲线的影响。并得出了连测铜铅的条件。The behaviour of the complex of copper and lead with salicylfluorone (SAF) adsorbed on HMDE has been investigated by derivative adsorption chronopotentiometry in NH 3/NH 4Cl.The dependence of the peak height on the dt/dE vs. E curve on the preconcentration time,pH walue of solution,constant reducing current and ratio of concentration of copper to lead has been discussed.This method achieves the simultaneous determination of copper and lead in human hair.

关 键 词：吸附计音 电位法 铜 铅 水杨基荧光酮 测定 

分 类 号：O614.121[理学—无机化学] O614.433[理学—化学]