丁二酮肟比色法测定包膜尿素释放养分速率  

Determination of controlled release rate of membrane coated fertilizer by colorimetry with dimethylglyoxime

作　　者：戴小敏[1] 刘袖洞[1] 左秀锦[1] 马小军[2] 

机构地区：[1]大连大学环境与化学工程学院,辽宁大连116622 [2]中国科学院大连化学物理研究所生物医用材料工程组,辽宁大连116023

出　　处：《化学工程师》2013年第2期25-27,共3页Chemical Engineer

基　　金：国家科技部973计划项目子课题(2012CB720801);中国科学院战略性先导科技专项子课题(XDA01030303)

摘　　要：以改性淀粉包膜尿素为模型,探讨用丁二酮肟比色法测定包膜尿素释放养分速率,以达到快速评价包膜尿素控制释放性能的目的。结果表明,丁二酮肟比色法测定包膜尿素释放养分速率可行,自制改性淀粉包膜尿素具有一定的控制释放性能。Membrane coated Uurea was prepared with modified starch, and colorimetry with dimethylglyoxime was used to investigate the controlled release rate of urea. The purpose was to provide a fast analytical method to evaluate the controlled release property of membrane coated urea. The results showed that colorimetry with dimethylglyoxime was feasible to analyze release rate of urea.

关 键 词：控释氮肥 包膜尿素 丁二酮肟比色法 养分释放 

分 类 号：TQ449.1[化学工程—化学肥料工业] TQ440.72