摘要
近年来,水相光度法测定钽铌特别是钽的研究取得较大的进展。5-Br-PADAP、BPR、三羟基荧酮类等显色剂,不仅与钽铌发生高灵敏的显色反应,而且与伴生元素钛、锆、钨、钼、钖等均发生高灵敏的显色反应。因此,在测定复杂试样中钽铌时必需分离富集。
A stady on ion extraction of Ta, Nb and associated elements is presented in this article.Thus, Ta and Nb can be separated and concentrated by extraction chromatography. This methodis also applied to the determination of trace Ta and Nb in ores.
