本文研究了W-Sb-P三元杂多酸的极谱行为,并建立了微量磷的极谱测定方法。该方法有较高的灵敏度,可应用于植酸中无机磷的分析,可以不经分离直接测定。 In this paper, the polarographic behavior of W-Sb-P ternary heteropolyacids was studied and a method for the determination of trace phosphorus by polarography was established. The method has high sensitivity and can be applied to the analysis of inorganic phosphorus in phytic acid, which can be directly measured without separation.