摘要
研究了头孢曲松钠与Cd2+、Ce3+、Eu3+、Tb3+金属离子络合体系的紫外光谱和荧光光谱特征。结果表明,头孢曲松钠与金属离子的紫外光谱均发生不同程度的蓝移,甚至吸收峰消失,其吸光度除Cd2+的升高,其余都下降;荧光强度也有明显的变化,加入Cd2+、Eu3+后头孢曲松钠的荧光猝灭,而加入Tb3+后头孢曲松钠的荧光增强。在此基础上,采用头孢曲松钠与Cd2+、Ce3+、Eu3+、Tb3+金属离子物质的量之比分别为1∶0.6、1∶1、1∶0.6、1∶3合成络合物,并且利用红外光谱和元素分析对络合物进行验证。
The spectra of ceftriaxone sodium with metal ions（Cd2＋,Ce3＋,Eu3＋,Tb3＋） were studied.The maximum ultraviolet absorbance wavelength of ceftriaxone sodium and metal ions was blue-shifted and even disappeared,while its absorbance was decreased after adding metal ions except Cd2＋.The fluorescence intensity also changed obviously.The fluorescence was quenched by adding Cd2＋ and Eu3＋,while the fluorescence intensity became stronger after adding Tb3＋.Under the optimum condition,the complexes were synthesized by using ceftriaxone sodium and Cd2＋,Ce3＋,Eu3＋,Tb3＋ in ratio of 1∶0.6,1∶1,1∶0.6,1∶3,respectively.The structures of these complexes were characterized by IR spectroscopy and elemental analysis.
出处
《光谱实验室》
CAS
CSCD
北大核心
2011年第2期587-590,共4页
Chinese Journal of Spectroscopy Laboratory
基金
忻州师范学院科研基金资助(200809)
