The method was established for purification of diflubenzuron by crystal technique with mixed solvents.本文论述了利用混合溶剂——结晶法提纯除虫脲的分析技术.The separation and determination of the primary impurities of diflubenzuron by liquid chrom...

除虫脲...

diflubenzuron的音标：diflubenzuron的英式发音音标为：[daɪflu:'benzʊərɒn]diflubenzuron的美式发音音标为：[daɪflu'benzʊərɒn]...