煤矸石中钒的测定研究  

Spectrophotometric Determination of Vanadium in Coal Gangue

作　　者：林春 刘洪亮 

机构地区：[1]龙岩矿务局708厂

出　　处：《光谱实验室》1998年第6期47-50,共4页Chinese Journal of Spectroscopy Laboratory

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.

关 键 词：5-BR-PADAP 钒 羟胺 煤矸石 测定 光度法 显色剂 

分 类 号：TD849.5[矿业工程—煤矿开采]