The color reaction of rare earths with 3-thiazolylazo-5-amino phenol (abbreviated TAAP) was studied,and a new spectrophotometric determination of total REs in aluminum ore with TAAP was established.

• 研究了3-噻唑偶氮-5-氨基苯酚(TAAP)与稀土(REs)的显色反应,建立了分光光度法测定铝矿石中稀土总量的新方法。