摘要
研究了在硫酸介质中抗坏血酸、氯化亚锡混合还原锗钼酸铵成锗钼蓝的显色反应。试验结果表明：其最大吸收波长为805．0nm，摩尔吸光系数为2．52×10^4L·（mol·cm）^-1，线性范围为0～3．00μg·mL^-1Ge（Ⅳ），锗钼蓝色泽稳定；在混合掩蔽剂存在下，20种常见离子无干扰。可用于锗的分光光度测定。
The chromogenic reaction of Ammonium germanium-molybdate to Germanium-molybdenum blue with Vc-stannous chloride as mixed reducing agent in the H2SO4 medium is studied. The results showed that the maximum absorption at 805.0 nm with molor absorptivities were 2.52×10^4 L·（mol·cm）^ -1 and liner range is 0-3.00 μL^-1. Ge-Mo blue＇ colour is stable. The influence of 20 common ions have also been studied without interfere under mixed masking agent. The method can be used for the determination of Germanium.
出处
《河北科技师范学院学报》
CAS
2008年第3期26-29,共4页
Journal of Hebei Normal University of Science & Technology
关键词
抗坏血酸-氯化亚锡
锗
分光光度法
Antiscorbic acid-stannous ride
Germanium
Spectrophotometric
