摘要
系统研究了Ｇｅ－ＡＲＳ－Ｈ２Ｃ２Ｏ４－Ｖ（Ⅳ）体系极谱催化波的影响因素，测定了Ｇｅ－ＡＲＳ－Ｈ２Ｃ２Ｏ４三元配合物的配合比为１∶２∶１。实验初步证明了该体系催化波为具有吸附性质的平行催化波。本法检出限为０．１４ｎｇ·ｍＬ－１，相对标准偏差小于９．８９％，标准回收率为９３．７０％～１０９．０％，０～５０ｎｇ·ｍＬ－１的锗具有良好的线性关系。测定天然水中微量锗，与石墨炉原子吸收结果对比，相对误差小于１０．８３％。
A method for determination of trace germanium in natural water bypolarographic catalytic wave was reported. In the perchloric acid medium, germanium,alizarin red S and oxalic acid, a ternary complex was formed in the composition ratio of 1:2: 1. The detect limit of 0. 14ng/mL, the linear range of 0￣ 50ng/mL, the relatestandard deviation of less than 9. 89%, and the recovery of 93. 70%￣ 109. 8% wereobtained. This method was sensitive, simple and accurate for the determination of tracegermanium in natural water samples.
出处
《世界地质》
CAS
CSCD
1996年第3期101-104,共4页
World Geology
关键词
极谱催化波
茜素红S
锗
天然水
polarographic catalytic wave, alizarin red S, germanium, natural water
