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关于钪与铬天青S(CAS)、氯化十四烷基二甲基苄基铵(CDBC)的络合物已有报导,而且也已用于稀土和钇钪铁氧体中钪的分光光度测定。但关于Sc~(3+)-GAS-溴化十六烷基吡啶(CPB)三元体系和Sc~(3+)-CAS-CPB-乙醇四元体系的研究仍未见报导。我们的实验表明,Sc~(3+)-GAS-GPB络合物的灵敏度略低于Sc~(3+)-CAS-CDBC络合物,而四元体系的灵敏度却远高于三元体系。稀土-CAS-CPB也能形成有色络合物,有趣的是,在适当过量的CPB存在下,Sc~(3+)有色络合物的灵敏度不变,而稀土离子
Complexes of scandium with chrome azure S (CAS) and tetradecyldimethylbenzylammonium chloride (CDBC) have been reported and have also been used for the spectroscopic analysis of scandium in rare earth and yttrium scandium ferrites Photometry. However, there is still no report on the research of Sc ~ (3 +) - GAS-CPB ternary system and Sc ~ (3 +) - CAS-CPB-ethanol quaternary system. Our experiments show that the sensitivity of Sc ~ (3 +) - GAS-GPB complex is slightly lower than that of Sc ~ (3 +) - CAS-CDBC complex, while the sensitivity of quaternary system is much higher than that of ternary system . The rare earth-CAS-CPB also forms a colored complex. Interestingly, the sensitivity of the Sc 3+ colored complex remains unchanged in the presence of a suitable excess of CPB, while rare earth ions