摘要
本文采用熔融联苯萃取8-羟基喹啉钛,继后溶固相于N,N-二甲基甲酰胺中,在390nm处测量吸光度。实验确定了各参数的最佳值,其摩尔吸光系数为7.9×10~3L·mol^(-1)·cm^(-1),一些干扰元素可以掩蔽。方法迅速、简便,用于测定铍铜合金中的痕量Ti,所得结果令人满意.
This paper reports a method for the determination of trace titanium (Ⅳ ). Molten biphenyl is used to extract the complex of Ti(Ⅳ) with oxine by shaking at least ten seconds. The solidified biphenyl is separated from the aqueous phase and dissolved in N, N-dimethy]formamide. The absorbance of the resulting yellow solution is measured at 390 nm against a reagent blank. The molar absorptivity, ε390nm, is found to be 7.9×l03 L·mol-1·cm-1. Some interferences may be eliminated by masking. The proposed method is simple and rapid, and has been applied to the determination for trace of Ti in a Be-Cu alloy with satisfactory results.
出处
《岩矿测试》
CAS
CSCD
北大核心
1991年第4期259-261,共3页
Rock and Mineral Analysis
关键词
钛
测定
光度法
固态
萃取
联苯
titanium determination, oxine, molten biphenyl extraction, spetrophotometry, N, N-dimethylformamide.
