摘要
本文在pH6的HAc-NH_4Ac缓冲溶液中,用乙酸锌标准溶液滴定铝和钛,以Zn^(2+)在交流示波极谱dE/dt=f(E)曲线上出现切口直接指示终点。方法准确、可靠,并用于硅酸盐岩石中铝和钛的测定,结果令人满意。方法回收率为99.10~100.08%。
A simple method for alternate current oseillopolarographic titration of aluminium and titanium with zinc acetate is described. In a buffer solution of pH=6(HAc-NH_4Ac)a sharp Zn^(2+) incision appears on dE/dt=f(E) curves, which can be used to indicate the end point. The recoveries of Al and Ti are 99.10~100.08%.
出处
《分析试验室》
CAS
CSCD
北大核心
1993年第5期55-56,共2页
Chinese Journal of Analysis Laboratory
关键词
波极谱滴定
硅酸盐矿
铝
钛
测定
Zinc acetate
A. C. oscillopolarographic titration
aluminium and titanium determination