摘要
In the presence of some kinds of surfactants, the reaction of Sc(Ⅲ) with 3,5 di Br PADAP is very sensitive. After studying the optimum conditions and some characters of several systems, the system of Sc(Ⅲ) 3,5 di Br PADAP triton X 100 is chosen for the spectrophotometric determination of microamount of scandium. Furthermore, the dual wavelength spectrophotometric analytical method was employed for this system, the microamount of scandium in rare earth matrix can be directly analyzed without separation. The standard added recovery ratios for several real samples of rare earth ores were determined and the results were satisfied.
In the presence of some kinds of surfactants, the reaction of Sc(Ⅲ) with 3,5 di Br PADAP is very sensitive. After studying the optimum conditions and some characters of several systems, the system of Sc(Ⅲ) 3,5 di Br PADAP triton X 100 is chosen for the spectrophotometric determination of microamount of scandium. Furthermore, the dual wavelength spectrophotometric analytical method was employed for this system, the microamount of scandium in rare earth matrix can be directly analyzed without separation. The standard added recovery ratios for several real samples of rare earth ores were determined and the results were satisfied.
