磷矿中P_2O_5的快速测定

RAPID DETERM INATION FORP_2O_5 IN PHOSPHATIC ROCKS

本文用自行设计的一种简易、安全的聚四氟乙烯溶样罐，与新型、高效的微波溶样技术相结合，进行磷矿的分解，溶样时间仅需２ ｍ ｉｎ，并首次将该技术与流动注射－ 分光光度法联用，测定其中Ｐ２ Ｏ５ 质量分数，结果准确、可靠，实现了从溶样到测定的一套快速分析方法。

A sim ple and safe PTEEpressurized digestion vesseldesigned by the author, com bined w ith new and effective m icrow ave digestion technique, is used for the digestion of phosphatic rocks. It takes only 2 m inutes to digest the sam ples. Analysis ofm ass fraction ofP2O5 by FIA spectrophotom etric m ethod show s that this technique is speedy, precise and reliable.