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8-羟基喹啉是无机物分离与分析上常用的一种有机试剂.容量法测定8-羟基喹啉的经典方法是溴量法,根据溴量法所测得的8-羟基喹啉的量还可以间接测定一系列的金属元素,但是这些金属元素的离子必须不具有氧化性,否则试样用酸溶解时,该离子就氧化8-羟基喹啉而无法再利用溴量法测得准确的含量,例如钒就是这种情况. 根据五价钒在高酸度时氧化性提高而能定量氧化5,7二溴8-羟基喹
8-hydroxyquinoline is an organic reagent commonly used in the separation and analysis of inorganic compounds. The classical method for the determination of 8-hydroxyquinoline by volumetric method is bromine method. The amount of 8-hydroxyquinoline measured by bromine method It is also possible to indirectly measure a series of metallic elements, but the ions of these metallic elements must not be oxidized, otherwise the sample oxidizes 8-hydroxyquinoline and can not be accurately measured This is the case, for example, with vanadium, which quantifies the oxidation of pentavalent 8-hydroxyquinoline according to the increased oxidation of pentavalent vanadium at high acidity