五氧化二磷快速测定方法探讨  

FAST DETERMINATION OF PHOSPHORUS PENTOXIDE

作　　者：宋学兰[1] 李艳[1] 刘月琼[1] 龙腾学[1] 

机构地区：[1]四川泸天化股份有限公司,四川泸州646300

出　　处：《大氮肥》2007年第1期60-63,共4页Large Scale Nitrogenous Fertilizer Industry

摘　　要：建立了磷钒钼黄比色测定氮磷复合肥中水溶性磷、有效磷的测定方法,此法简便、快速、准确,满足中控分析要求。此法也适用于磷酸一铵中水溶性磷、有效磷的测定。For fast analysis, the influences of co-existing components on P-V molybdenum yellow colorimetry method used to determine P content in N-P compound chemical fertilizer were tested; tests were also done for comparison of P-V molybdenum yellow colorimetry method and molybdophosphoric acid quinoline weight method. The method of P-V molybdenum yellow colorimetry was set up for determination of water soluble P and effective P in N-P compound chemical fertilizer. This method is simple, fast and accurate, water soluble P and effective satisfying central control analysis, also suited to the determination of P in phosphoric acid-ammonium.

关 键 词：氮磷复合肥 水溶性磷 有效磷 测定方法 

分 类 号：TQ441[化学工程—化学肥料工业]