摘要
本文系统研究了醇、酮等7种含氧有机溶剂对铝-桑色素络合物荧光反应的溶剂化效应。研究发现,上述有机溶剂对荧光体系均有增敏作用,以乙醇的效果最佳,使络合物的荧光强度增加6倍多。据此,本文建立了测定微量铝的高灵敏度荧光分析方法,线性范围为0～1.0μg/10ml,检测限为1.6×10^(-9)g/ml。用所建立的方法对化学试剂中的微量杂质铝进行了测定,结果令人满意。并对有机溶剂化效应的机理作了探讨。
The solvation effect of aqueous organic solvents on complex of aluminum (Ⅲ)-morin was investigated. In the presence of organic solvents, the sensitivity and selectivity of fluorescent reaction were greatly increased. A highly sensitive method for the determination of trace aluminum in some chemical reagents was recommended, the linear range of the method is in the range of 0-1. 0 μg/10 ml, and the detection limit is 1. 58×10-3μg/ml, The interference of foreign ions was studied. Moreover, the composition of the Al(Ⅱ)-morin complex and solvation numbers of organic solvent were measured, and the reaction mechanism of aqueous solvent effect on the fluorescent properties was investigated.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1993年第8期963-966,共4页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金
关键词
铝
桑色素
有机溶剂
荧光光度法
Aluminum, Morin, Aqueous organic solvent, Fluorimetry.
