硅锑钼杂多酸罗丹明B缔合物的二级散射光谱研究  

STUDY OF THE ASSOCIATED COMPLEX OF Si-Sb-Mo HETEROPOLY ACID-RHODAMINE B WITH SECONDARY SCATTERING SPECTROMETRY

作　　者：蒋治良[1] 王盛棉[1] 黄中强 李芳 

机构地区：[1]广西师范大学化学化工系,广西桂林541004

出　　处：《广西师范大学学报（自然科学版）》2000年第2期50-53,共4页Journal of Guangxi Normal University:Natural Science Edition

摘　　要：在 0 0 4mol/LH2 SO4 介质中 ,SiO2 -3 ,Sb(Ⅲ ) ,MoO2 -4 形成Si Sb Mo三元杂多酸 ;然后调节酸度至 0 2 2mol/LH2 SO4 ,加入罗丹明B生成 [Si Sb Mo杂多酸 ]·[罗丹明B]四元缔合物 ,该缔合物在 650nm处产生一灵敏的二级散射峰 据此建立了一个测定 4～ 4 0 μg/LSi的二级散射光谱分析新方法 ,用于钢样中硅的测定 。SiO 2- 3,Sb(Ⅲ) and MoO 2- 4 form the ternary heteropoly acid of Si Sb Mo in the medium of 0.04 mol/L H 2SO 4. After the concentration of H 2SO 4 was adjusted to 0.22 mol/L,rhodamine B was added. The associated complex of Si Sb Mo heteropoly acid rhodamine B was formed. It has a sensitive secondary scattering peak at 650 nm. The method has been applied to determination of Si in steel samples,with satisfactory results.

关 键 词：罗丹明B 二级散射光谱分析 硅锑钼杂多酸 缔合物 

分 类 号：O641.4[理学—物理化学] O657.3[理学—化学]