摘要
测钼的荧光熄灭法多采用钼与罗丹明类荧光试剂生成不发荧光的配合物而进行测定,我们最近合成的5′-硝基-水杨基荧光酮(5′-N-SAF)结构式见右图,当水溶液中存在Triton X-100时,该配合物具有强烈的荧光;痕量钼的存在可使荧光减弱,据此建立了荧光熄灭测定痕量钼的新方法,该法的灵敏度高(检测限达4×10^(-3)μg/mL)、选择性好、简单、快速,优于文献,本文研究了Mo(Ⅵ)--5′-N-SAF配合物的形成条件。
This paper deals with a new fluorometric reagent, 5'-nitro-salicylfluorone (5'-N-SAF) which was synthesized by ourselves used to determinate molybdenum in the presence of Triton X-l 00. A new fluorometric method has been developed and the optimum conditions have been established. The linear range is 0-0. 6 μg/mL and the minimum detectable amount is 4×10-3μg/mL.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第9期1181-1182,共2页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
荧光试剂
荧光熄灭法
钼
5'-N-SAF
Molybdenum, 5'-Nitro-salicylfluorone, Fluorescence quenching method
