摘要
在研究共存元素对钐、铕、铽和镝配合物荧光发射的影响时,人们曾分别观察到这些配合物的荧光强度不但不随某些共存稀土和非稀土离子浓度的增加而降低;而是在一定浓度范围内随共存离子浓度的增加,配合物的荧光发射大大增强,利用这种效应可大大提高这类配合物的荧光分析灵敏度,我们采用自己组装的激光诱导荧光光谱测定装置,选取铕(钐)-
A new sensitized fluorescence phenomenon was observed by adding some of metal ions to Eu (Sm)-DBM-CPB or Eu(Sm)-TTA-Phen-Triton X-100 system, which is known as a synergistic luminescence effect. The synergistic luminescence effect and its analytical application were studied using laser-induced fluorimetry. The influence of the chemical properties of rare earth ions on the synergistic luminescent effects of above systems is reported. The synergistic luminescence systems can be used for the determination of ultratrace amounts of europium and samarium. Results are satisfactory for the determination of trace europium and samarium in highly pure rare earth oxides and synthetic samples.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第7期894-896,共3页
Chemical Journal of Chinese Universities
关键词
协同发光效应
稀土元素
荧光法
Synergistic luminescent effect, Fluorimetry, Rare earths analysis, Fluorimetry
