磷的测定方法中,目前光度法所占的比例还比较大。分析化学工作者已对磷钼二元杂多酸、磷钼二元杂多酸与另外一些元素形成的三元杂多酸的反应机理及光度法测定磷的分析应用进行了广泛研究,使得以磷钼杂多酸形式光度法测定磷比较成熟和普及。这类方法简单准确、使用方便、易于实现自动化、不仅用于痕量也用于高含量磷的测定。 Phosphorus determination method, the current proportion of photometric method is still relatively large. Analytical chemists have conducted extensive research on the reaction mechanism of phosphoric-molybdenum dibasic heteropolyacid, phosphorous-molybdenum heteropolyacid and ternary heteropolyacids formed by other elements and the spectrophotometric determination of phosphorus. Phosphomolybdic heteropoly acid form photometric determination of phosphorus is more mature and popular. This method is simple and accurate, easy to use, easy to automate, not only for trace but also for the determination of high levels of phosphorus.