摘要
本文介绍用连苯三酚作为配位基测定低浓度的钒.连苯三酚可与钒(Ⅲ)、(Ⅳ)或(V)形成稳定的蓝紫色配合物.本法选择性强,灵敏度高,适用于合金钢中总钒量的测定.
Determination of vanadium at low concentrations has been proposed. Whin is besed on spectrophotometric method. Vanadium( Ⅲ、Ⅳ、Ⅴ ) reacts with pyrogallol to forms a stable biuish-violet complex of λmax at 600nm. The method is highly sensitive、 selective and can be applied for spectrophotometric determination of tatal vanadium in alloy steel.
关键词
连苯三酚
分光光度法
测定
钒
Determination Vanadium
Spectraphotometry
Pyrogallol
