偶氮溴膦PN与钪的络合反应及钛铁溶液中微量钪的测定

Study on the colour reaction between scandium with BPA-PN and determination of microamuont scandium in Ti-Fe solution

本文详细研究了偶氮溴膦PN与钪的络合反应条件。使用铜铁试刑沉淀,PMBP-二甲苯萃取分离钛铁废水中微量钪,作为简便快速,准确的光度测定方法,ε=2.16×10~4(680nm)。

Reaction of Scandium with BPA-PN in hydrochloricacid medium, having maximum absorption at 680nm.Under the experimental conditions employed,the apparent molar absorptivity is 2.16 × 104L · mol-1 · cm-1.Bear's law is obeyed for 0~ 15μg of Sc2O3in 25ml of solution. The method is simple,rapid and trace amounts of scandium in Ti- Fe solution been determined with satisfactory results.