摘要
本文研究了钒与5-Br-PADAP及羟胺反应形成有色配合物的条件,配合物的最大吸收波长600nm,摩尔吸光系数ε=2.8×104L·mol-1·cm-1,配合比V∶5-Br-PADAP∶羟胺=1∶1∶1。钒含量在0—0.8mg/L范围内符合比耳定律。此法用于煤矸石中钒的测定结果满意。
The form conditions of vanadium(Ⅴ) 5 Br PADAP hydroxyl amine complex were investigated.The wave length of maximum absorbance of complex is 600nm.The apparent molar absorptivity reached 2.8×10 4L·mol -1 ·cm -1 .The complex formed is of the type n (vanadium): n (5 Br PADAP): n (hydroxyamine)=1∶1∶1.Bear's law is obeyed in the range of 0—0.8mg/L for vanadium.The method has been applied to the determination of vanadium of coal gangue and satisfactory result was obtained.
出处
《光谱实验室》
CAS
CSCD
1998年第6期47-50,共4页
Chinese Journal of Spectroscopy Laboratory