摘要
GB/ T10 2 0 9.2 - 2 0 0 1中 ,在磷酸二铵 (DAP)中有效五氧化二磷的分析中 ,我们将用于从 DAP提取有效 P2 O5的 EDTA溶液先预热 (80± 2 )℃ ,再进行提取 ,结果该方法提取时间比国家标准缩短了 1/ 3时间 ,重现性好 ,准确度高。
The DAP sample was extracted by EDTA solution which wa s preheatinged t o the temperature of (80±2)℃, then the active phosphoric anhydride in diammoni um phosphate was determined. The determination time was shorted than national st andard, and the repeatability and accuracy of this method were good.
出处
《化工技术与开发》
CAS
2003年第2期35-37,共3页
Technology & Development of Chemical Industry
关键词
磷酸二铵
有效磷
重量法
快速测定
EDTA
EDTA
gravimetric method
diammonium phosphate
determin ation of active phosphoric anhydride
