摘要
本文研究了在ＯＰ存在下，钛与溴邻苯三酚红和罗丹明Ｂ的协同显色反应，探讨了利用该反应分光光度法测定钦的最佳条件。在硫酸介质中，钛与溴邻苯三酚红和罗丹明Ｂ形成红紫色配合物，λ＿（ｍａｘ）为５８９ｎｍ，ε＿（５８９）为１．１×１０￣５Ｌ，ｍｏｌ￣＿（－１）·ｃｍ￣（－１），钛量在０～１０ｍｇ／２５Ｌ范围内符合比尔定律。用于合金钢中铁的测定，结果满意。
A method is proposed for the spectropho-tometric determination of titanium with bro-mopyrogallol and rhodamine B by synergisticcolour reaction,A red coloured complex isbrmed in a dilute sulfuric acid medium con-taining OP,and the molar absorptivity is 1.1×10￣5L· mol￣(-1)·cm￣(-1) at 589nm. This methodhas been used for the determination of titani-um in alloys with satisfactory results.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第6期57-59,共3页
Chinese Journal of Analysis Laboratory
