嘧菌酯微囊悬浮剂的制备与分析  

Preparation and Analysis of Azoxystrobin Microcapsule Suspension

作　　者：徐维明[1] 黄元菊 李明伟[1] 张敏[1] 刘洪武 郑玉国[2] 江光奇[1] 王俊[1] 

机构地区：[1]贵州大学绿色农药与农业生物工程国家重点实验室培育基地和教育部重点实验室精细化工研究开发中心,贵阳550025 [2]兴义民族师范学院,贵州兴义562400

出　　处：《农药》2018年第1期16-19,共4页Agrochemicals

基　　金：国家自然科学基金(21262009);贵州省高校优秀科技创新人才支持计划(2013137);贵州省科学技术基金资助项目(20122326)

摘　　要：[目的]制备嘧菌酯微囊悬浮剂并检测关键指标。[方法]以脲醛树脂为囊材、甲苯为溶剂、SD-811为分散剂,采用高效液相色谱仪测定微胶囊悬浮剂的有效成分含量和包封率。[结果]制成的6%微胶囊接近球形,表面光滑,粒径在1~15μm之间。微胶囊悬浮剂有效成分含量为5.77%,包封率为95.67%,悬浮率为81.6%。分析方法具有较好的线性关系(相关系数为0.9993),标准偏差为0.09,变异系数为1.52%,平均回收率为97.27%。[结论]在选定条件下制备的微胶囊形貌较好,具有良好的包覆性能。[Aims] The aims were to prepare azoxystrobin microcapsules suspension and analyze its key quality indexes.[Methods] The azoxystrobin microcapsules suspension（CS） was prepared with urea-formaldehyde resin as wall materials,methylbenzene as solvent, SD-811 as dispersant. The effective content and encapsulation efficiency of microcapsule suspension were determined by high performance liquid chromatography（ HPLC）. [Results] The azoxystrobin 6% microcapsule suspension was close to the spherical shape, the surface was smooth and the particle size was 1-15 μm. The effective content of the microcapsule suspension was 5.77%, the encapsulation efficiency was95.67%, and the suspension rate was 81.6%. The analytical method had excellent linear correlation, the linear correlation was 0.9993, the standard deviation was 0.09, the coefficient of variation was 1.52%, and the average recovery was 97.27%. [Conclusions] Under the selected conditions, the microcapsule showed good morphology and encapsulation efficiency.

关 键 词：嘧菌酯 微囊悬浮剂 包封率 

分 类 号：TQ450.6[化学工程—农药化工]