摘要
在含抗坏血酸和EDFA的NaAc—HAc缓冲溶液中,用单扫描示波极谱法研究了铀(Ⅳ)—棓酸丙酯络合物的极谱性质并应用于矿石中铀的分析。
In a buffer solution of NaAc-HAc (pH 5.69) containing vitamin C and EDTA, a sensitive polarographic absorptive wave of uranium(Ⅵ)—propyl gallate complex have been observed by using single-sweep polarography. The peak potential of the wave appears at -0.52V (VS. SCE). The peak current is linearly proportional to the concentration of U(Ⅵ) in the range of 0.8×10^(-8)—1.2×10^(-8)mol/L. The behaviour and mechanism of the absorptive wave have been studied and discussed. It can be used to determine microamount and ultra microamount uranium(Ⅵ) in Ores.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1990年第2期74-78,共5页
Natural Science Journal of Xiangtan University
基金
国家自然科学基金
关键词
络合物
铀
bang酸
丙酯
吸附
极谱
uranium complex
gallic acid
propyi ester/adsorption
polarographic analysis
