摘要
针对复混肥料中有效磷含量的测定(GB/T 8573—2010)存在的提取有效磷时间和沉淀干燥时间长且步骤繁琐的缺点,采用煮沸的方式提取有效磷和220℃条件下干燥沉淀。改进后的方法原理与国标法一致,且快速高效、操作简单、成本降低,其准确度和精密度符合国标法的要求。
In connection with shortcomings of determination method of available phosphate content in compound fertilizers （ GB/T 8573-2010 ） , such as long extraction time for available phosphate , and long precipitation and dry time and cumbersome steps , the boiling method is used to extract available phosphate , and precipitation and dry at 220 ℃.The improved method has the same principle with the national standard method , moreover , it is fast and efficient , easy to operate , and reduction of cost , its accuracy and precision are meet with the requirements of the national standard .
出处
《化肥工业》
CAS
2014年第4期11-13,共3页
Chemical Fertilizer Industry
关键词
复混肥料
有效磷
测定方法
改进
compound fertilizers
available phosphate
determination method
improvement
