摘要
在ｐＨ２～６的硫酸介质中，锗（Ⅳ），锑（Ⅲ）和钼（Ⅵ）形成三元杂多酸，此三元杂多酸在０．２４ｍｏｌ／Ｌ的Ｈ_２ＳＯ_４中能迅速在滴汞电极上还原而产生灵敏的极谱电流，其峰电位为－０．３５Ｖ（ｖｓ．ＳＣＥ），测定下限是２×１０^（－８）ｍｏｌ／Ｌ。用药物进行加标准回收实验，误差在１０％之内，满足微量分析的要求。
Ge(Ⅳ), Sb(Ⅲ) and Mo(Ⅵ) formed a ternary heteropoly acid at pH2～6, which would produce a well-defind polarographic wave in a medium of 0.2 4 mol/L H_2SO_4 sensitively, with a peak potential at -0.35V (vs. SCE). The detection limit was 2×10￣(-8) mol/L. This procedure has been used successfully for the determination of Ge in medicines.The recovery was quite satisfactory.
出处
《分析测试学报》
CAS
CSCD
1994年第2期70-73,共4页
Journal of Instrumental Analysis
关键词
示波极谱
杂多酸
锗
药物
吸附波
Oscillopolarographic adsorptive wave, Heteropoly acid, Germanium.
