A new rapid and simple spectrophotometric method for the determination of scandium with chrome Azurol S cetylpyridinium chloride in ammoniacal medium was studied. This method based on the coloration of scandium-chrome azurol S-cpc ternary complex can be applied in the concentration range of 0- 12ug/25m1 of Sc203. It showed an absorption maximum at 530nm in a pH range ≥10 aad its apparent molar absorptivity is 5.7 × 104. The PMBP extraction was used to separate most accompanying elements, and the interference of the resi- dual ions were eliminataed by adding suitable masking agents.
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邓维群,1982,铬天青S—氯化十六烷基吡啶比色法测定钪[J].岩石矿物学杂志,1(2):0.,1982,Photometric Determination of Scandium with Chrome Azurol S Cetylpyridinium Chloride[J]. Acta Petrologica et Mineralogica,1(2):0.