摘要
本文研究了铌—二溴苯基萤光酮—阳离子表面活性剂三元体系的荧光特性,提出了以二溴苯基萤光酮-溴化十六烷基三甲铵荧光熄灭法测定铌的新方法。该方法的选择性和重现性好,采用适当的掩蔽剂,测定了铁矿中的微量铌,获得满意的结果。
A method has been developed for microdetermination of niobium based on the fluorescence quenching effect of Br-PF-CTMAB due to formation of a nonfluorimetric complex NbBr-PF-CTMAB. This method is applicable to the microdetermination of Nb in iron Ores.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1989年第6期558-560,共3页
Chinese Journal of Analytical Chemistry
