离子缔合物二级散射光谱的分析应用——Ⅰ.硒(Ⅳ)-碘化物-罗丹明B体系  

Analytical Application of Double Scattering Spectra of Ion-Association Complex

作　　者：刘绍璞[1] 刘忠芳[1] 李明[1] 

机构地区：[1]西南师范大学环境化学研究所,重庆630715

出　　处：《化学学报》1995年第12期1178-1184,共7页Acta Chimica Sinica

基　　金：国家自然科学基金资助的项目

摘　　要：从硒(Ⅳ)-碘化物-罗丹明B反应体系的研究中,发现了离子缔合物水溶液的两种二级散射光谱现象.研究了它们的光谱特征、影响因素和适宜条件,确定了二级散射强度与溶液中离子缔合物浓度的关系,提出了利用二级散射光谱测定痕量硒的高灵敏分析方法.The nature of double scattering light from an agueous solution of ion-association complex of selenium(Ⅳ)-I --rhodamine B system was studied. The spectral characteristics of the double scattering, the effective factors and optimum conditions of the reaction have been investigated. The relation between the intensity of double scattering light and the concentration of selenium(Ⅳ) was established. A New way for determination of trace amounts of selenium(Ⅳ) by the double scattering spectra was proposed. The mechanism of the reaction was also discuesed.

关 键 词：二级散射光谱 硒 离子缔合物 

分 类 号：O613.52[理学—无机化学] O657.3[理学—化学]