摘要
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。
A polarographic method is proposed for the determination of inorganic phosphorus. The procedure is based on the formation of ternary heteropoly acid complex. The polarographic behaviour of W-Sb-P heteropoly acid has been stu-died. The linear concentration range of phosphorus is 2×10-8-7×10-6g/ml.the detection limit is 8 ×10-9g/ml. The method has been applied to the determination of trace phosphorus in phytic acid.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1993年第9期1043-1045,共3页
Chinese Journal of Analytical Chemistry
关键词
无机磷
植酸
极谱
Phosphorus ,Heteropoly acid,Polarography.
